Your continuous use of Matthew 7:1-2 to caution Christians is poor application of the verse. The surrounding verses and 1 and 2 are how our fellow humans will react to our actions. Jesus is making reference the second greatest commandment.
Matthew 22:36, "Master, which is the great commandment in the law?
37 Jesus said unto him, Thou shalt love the Lord thy God with all thy heart, and with all thy soul, and with all thy mind.
38 This is the first and great commandment.
39 And the second is like unto it, Thou shalt love thy neighbour as thyself.
40 On these two commandments hang all the law and the prophets.
See how this is referenced a little further into Matthew chapter 7.
Matthew 7:12, “Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law and the prophets.”
How does Jesus judge sin?
Matthew 5:27, “Ye have heard that it was said by them of old time, Thou shalt not commit adultery:
28 But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart.”
Doesn’t this indicate that God judges that everyone who thinks that you support a pedophile has already judged you in his heart.
What I am trying to get across is that the Church is required to judge others. Another example:
Ephesians 5:11, “And have no fellowship with the unfruitful works of darkness, but rather reprove them.”
This is impossible to do without judging others.
I present to you that this thread shows the application of Matthew 7:1 and 2. This is exactly what is going one. One person judges another, and then that person returns like judgment.
How would the judgment of God work for judging Christians at the Judgment Seat of Christ? I can see it. “You judged Squatting_Bear of being ignorant. My dear son, you are ignorant.” Me being ignorant in the eyes of God is coming anyway, whether I ever knew Squatting_Bear.
Matthew 7:2 being the action of God as like “measure,” pragmatically makes no sense.