Is Christianity Just a Brainwashing Ritual?

Questions about whether Christianity is only a brainwashing ritual involving rejection of the outside world, affirmation within the tribe, ritualistic chanting, etc. and whether denial of a biological man’s womanhood is comparable to an atheist denying someone’s belief in Christianity.

• How do you respond to the claim that Christianity is only a brainwashing ritual, with rejection of the outside world, affirmation within the tribe, and ritualistic chanting in the form of prayer and worship music?
• Is my denial of a biological man’s womanhood comparable to an atheist’s denial of my belief in Christianity?