Nobody adheres to all of the Bible, as it's impossible and impractical.
Based on what?
According to Romans 8:4-8, the only way it's possible to keep God's Law, perfectly, is to focus our thinking on spiritual things. Romans 13:8-10, we read that by loving our neighbor, we will keep the law.
Even Jesus said that the entirety of the law and prophets are fulfilled in the two commandments--- Love God with all our heart, soul and mind, and love our neighbors as ourselves. Matthew 22:36-40.
So.... perhaps the problem here is that you simply weren't paying attention, or stopped reading and praying somewhere along the way?
It's actually easier than many people realize.
Every Bible sect and religions picks and chooses what they want/feel like following.
So, it's not possible to actually learn what IS and IS NOT to be adhered to?
But that's not my main point. The Bible followers, as a whole, all come to different conclusion about salvation, nature of Christ, etc... based on the Bible. Yes, these people may be sub-divided into different groups (Baptists, Catholics, etc..) that agree with one another in their own group about how they interpret the Bible, but if you take a Birds Eye view, you'll see there are many such groups with contradicting views among themselves.
Ever read the parable of the mustard seed that grows into a large tree, and all manner of different birds come to find rest under its shade?
The Parable of the Mustard Seed
Then He said, “What is the kingdom of God like? And to what shall I compare it?
“It is like a mustard seed, which a man took and put in his garden; and it grew and became a large tree, and the birds of the air nested in its branches.”
Then, have you ever read the seven letters to the seven churches in the book- Revelation? Chapters two and three.
Each of these different churches experienced different issues, and faced different rebukes from Jesus.
While I get your complaint, it's an old one, which was answered in these two sets of passages.
1- Jesus said that the Kingdom of Heaven is like a large tree that all different kinds of birds will take refuge in.
Apparently, he is already aware of these different groups, and will handle them accordingly. He clearly had no problem with the sheer level of diversity in his Kingdom.
2- The fact that he only limited his rebuke and encouragement to 7 specific churches, knowing that it'd be distributed throughout the whole world's people, shows that he's not particularly bothered with such diversity.
We then have what Peter tells us in 1 Peter 4.
17 For the time has come for judgment to begin at the house of God; and if it begins with us first, what will be the end of those who do not obey the gospel of God? 18 Now
“If the righteous one is scarcely saved,
Where will the ungodly and the sinner appear?”
This is something you need to pay very close attention to.
God's Judgment--- it starts at his own people.
Even Paul alludes to this in his letter to Timothy.
19 Nevertheless the solid foundation of God stands, having this seal: “The Lord knows those who are His,” and, “Let everyone who names the name of Christ depart from iniquity.”
20 But in a great house there are not only vessels of gold and silver, but also of wood and clay, some for honor and some for dishonor. 21 Therefore if anyone cleanses himself from the latter, he will be a vessel for honor, sanctified and useful for the Master, prepared for every good work.
Don't think that he's not aware of the issues you refer to. Furthermore, note Peter's statement where he says--- What will be the end of those who don't obey the gospel of God?
If the righteous are scarcely saved-- where will the ungodly and sinner appear?
So... if you want to use different denominational constructs, and their failings to justify your unbelief--- you are deliberately screwing yourself.
Each and every single human being--- "christians" included--- will answer to God.
The only difference will be-- we will have submitted our lives to Jesus, and received his forgiveness and cleansing of our sin.
Do you really think that standing before a judge without a defense attorney is a good idea when you actually are guilty, because all the others in court are as guilty as you, but have chosen a defense attorney?
God has actually given us a defense attorney. His name is Jesus.
1 My little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous. 2 And He Himself is the propitiation for our sins, and not for ours only but also for the whole world.
Don't think you're going to get away with anything. Nobody is. God's record keeping capabilities far exceeds even the best record keeping faculties of the entire human race, combined.
Every single thought, word, action, lack of action, etc..... is recorded, and will be played back to us on the day we stand before God to answer for our lives.
Those who trust in Jesus will have Jesus standing with them, and he will say--- Father, this one is mine. They trusted me.
The stamp posted on their record will be in blood red--- Paid in Full!
So.... please.... don't destroy yourself because of the failures of others.
And yet, there are misundersandings, among these Christian groups as to who that Jesus is.
Yep. Nobody, except Jesus, kept the Law, 100%. NOBODY.....
Here's something for you to consider....
16 For God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have everlasting life. 17 For God did not send His Son into the world to condemn the world, but that the world through Him might be saved.
Look very closely at these two sentences. What do they say? #16 shows up at every football game. Someone, somewhere in the stands, drapes a banner over the rail, and it's there for everyone to see. One player in particular apparently tattooed John 3:16 on his eyelids.
Now, according to another passage we read--
[Pro 17:9 NKJV] 9 He who covers a transgression seeks love, But he who repeats a matter separates friends.
In another we read
[Jer 31:3 NKJV] 3 The LORD has appeared of old to me, [saying]: "Yes, I have loved you with an everlasting love; Therefore with lovingkindness I have drawn you.
In yet another we read
[1Jo 4:10 NKJV] 10 In this is love, not that we loved God, but that He loved us and sent His Son [to be] the propitiation for our sins.
In still another we read
[Psa 32:1-6 NKJV] 1 [A Psalm] of David. A Contemplation. Blessed [is he whose] transgression [is] forgiven, [Whose] sin [is] covered. 2 Blessed [is] the man to whom the LORD does not impute iniquity, And in whose spirit [there is] no deceit. 3 When I kept silent, my bones grew old Through my groaning all the day long. 4 For day and night Your hand was heavy upon me; My vitality was turned into the drought of summer. Selah 5 I acknowledged my sin to You, And my iniquity I have not hidden. I said, "I will confess my transgressions to the LORD," And You forgave the iniquity of my sin. Selah 6 For this cause everyone who is godly shall pray to You In a time when You may be found; Surely in a flood of great waters They shall not come near him.
These are scattered throughout the entire bible.
Jesus paid the price to save us from our sin, and the penalty due our sin. Are you really going to send yourself to an eternity of misery, agony and anguish because other people don't do it the way you think it should be done?