I don't brainwash anybody.
If someone asks my opinion, I tell them I was brought up in a Christian household, Sunday School, bible study and so on, but as I grew older and began to experience the hard realities of life, I gradually came to see that some important parts of what Jesus said (specifically, about prayer) are simply not true.
I fully accept that the Bible is full of ancient history, much of it confirmed by modern archaeology, as well as poetry and meditations. The story of Jesus is an inspiring one but you don't have to believe in him to see the value of, for example, his Sermon on the Mount.
Much of what he said was plain common sense, and boils down to the Old Testament basic belief that religion means doing unto others as you would like them to do unto you.
I'm happy to go along with that. Any reasonable atheist is.