If any church cut out everyone who sinned then there would be no people in the church. I agree that egregious sinners should not have positions of leadership and should have their positions of influence taken away. I trust in God's Justice. They're not getting away with anything. None of them. We'll all be judged by God for our own actions.
No one has said all sinners should be cut out, that is misrepresenting the posts of others.
I think if one is a sexual sinner then they are not saved and need to be led to the Lord. However leaders are trusted and they are trusted with children and this makes it worse than other people.
James 3:1
Not many of you should become teachers, my brothers, for you know that we who teach will be judged with greater strictness.
1 Tim 5:20
But those elders who are sinning you are to reprove before everyone, so that the others may take warning.
1 Tim 3;2+
Therefore an overseer must be above reproach, the husband of one wife, sober-minded, self-controlled, respectable, hospitable, able to teach,
We are to judge those who are brother and sisters as 1 Cor 5:11 is very clear about.
James 5:19+
My brothers, if anyone among you wanders from the truth and
someone brings him back, let him know that whoever brings back a sinner from his wandering will save his soul from death and will cover a multitude of sins.
1 Cor 5:12+
For what have I to do with judging outsiders? Is it not those inside the church whom you are to judge? God judges those outside.
“Purge the evil person from among you.”
It is not against judging but more how one is judging. Leaders are in a trusted position and children are to be protected. Our responsiblity is to the children. As I say children don't ask to be born, they cannot look after themselves.