I always thought it was kind of weird how we imposed this on children. It's extremely manipulative. They're gaslighting a 5yr old child who can't tell the difference between Jesus and Moses that she is emphatically a Christian. While a child is effectively neutral.
What's worse is various holy books tell people to do it. For example, I remember my own father telling me when I was younger "instruct your children in the way of the Lord and when they are older they will never depart" which is kinda sick sht if you think about it from a brainwashing perspective.
I know this last point is kind of speculative, but I feel like if you're religion requires you to brainwash preschoolers in order for them to follow it as adults, then it's not a very good religion.
Tbh, imo, even if there are levels to it, I don't think there is a way to raise a child without imposing beliefs to them in one way or another stuff, even unconsciously. Parents are the first social models for their children, and through them, children integrate society and develop as social subjects. Religion is part of the larger society, so why make a special exception for it?
I don't blame parents for teaching their own subjective views on life or about morality to their children. If these perspectives are informed by and tied to a religion, I don't see anything wrong in transmitting that relationship to a cult to the kid too.
That being said, I do think there is a difference between teaching a particular relationship to a religion, and forcing your kid to accept that teaching or to believe in the same way you do when they reject it.