Scripture refutes you:
Eph. 1:3 Blessed be the God and Father of our Lord Jesus Christ, who has blessed us in Christ with every spiritual blessing in the heavenly places, 4 even as he chose us in him before the foundation of the world, that we should be holy and blameless before him. In love 5 he predestined us for adoption to himself as sons through Jesus Christ, according to the purpose of his will, 6 to the praise of his glorious grace, with which he has blessed us in the Beloved.
... and constantly running away to v.13 is NEVER going to make v.4 disappear.
Sorry that you reject Scripture (1:4).
Take your own advice.
You need to STOP FIGHTING Eph. 1:4.
Don't need it to disappear
The issue is are individuals or the body of Christ being refered to
Three verses make it clear men are not in Christ before the foundation of the earth
Romans 16:7 (KJV 1900)
7 Salute Andronicus and Junia, my kinsmen, and my fellowprisoners, who are of note among the apostles, who also were in Christ before me.
Men were in Christ before Paul
Ephesians 2:12 (KJV 1900)
12 That at that time ye were without Christ, being aliens from the commonwealth of Israel, and strangers from the covenants of promise, having no hope, and without God in the world:
The Ephesians addressed were clearly noted as being separate from Christ at a point in time
Ephesians 1:13 (KJV 1900)
13 In whom ye also trusted, after that ye heard the word of truth, the gospel of your salvation: in whom also after that ye believed, ye were sealed with that holy Spirit of promise,
and in Christ when they believed