I take Dawkins line that there are no Christian Children etc. i.e. just because your parents were actively christian you must be.
I agree - new born babies are no more born christian than they are born muslim or born West Ham fans or born musical. However they are born into households that may be christian, muslim or West Ham fans or musical and/or to parents who chose to bring them up to be christian, muslim, West Ham fans or musical by taking active steps to inculcate those aspects into their children - such active steps might include choosing to send their children to a faith school or to Sunday School/madrassa classes, allowing their children to attend worship at church/mosque or buy buying a little West Ham top for them to wear and taking them to see West Ham when they are old enough.
And there are examples where parents make a decision to take active steps to promulgate something thing in their children that isn't something they do themselves - for example my in laws weren't musical, played no instruments but they ensured that all of their children were brought up to be musical by taking a range of active steps for their children - enrolling in instrument lessons, buying a piano for them to practice on etc etc.
My parents were not active Christians by any sense. So I dispute an active christian upbringing.
Maybe your parents weren't active christians - but nonetheless they made decisions about your upbringing that ensured promulgation of christianity in you that were entirely choices - while I might accept your argument on the faith school (although it is really rare that there wasn't another non faith school in easy walking distance) but there can be no such argument on Sunday School - that was an active decision to send you to a completely voluntary and elective activity whose prime purpose is christian religious instruction. Why on earth would they have done that unless they wanted you to be brought up in a christian manner. And even if they didn't understand what Sunday School was (hardly credible) that you went and were attending a faith school at a key age and (although weirdly you seem hazy on details) were attending christian worship as a child indicates that your upbringing was miles away from being non religious, but was actively christian, regardless of whether your parents were active churchgoers. Here is the clue - parents bringing up their children in a non religious manner do not choose to send their children to voluntary religious instruction classes, whether christian, muslim, hindu etc, nor are they likely to send their kids to faith schools nor are they likely to have kids attending religious worship, whether christian, muslim, hindu etc.
I think you have a problem of perspective - I think you cannot see that because your upbringing wasn't as tub thumpingly christian apologist as you have become that it wasn't a christian upbringing. It was. It is a bit like someone who as an adult is a rabid West Ham fan, season ticket holder, attending all home and away games claiming that they weren't brought up to be a West Ham fan because their parent's only bought them the odd top, supported them attending the occasional game and encouraged them to find out all about West Ham by buying the West Ham fanzine for them every week (ie. like Sunday school).
Also highly dubious is your ''folding back into the religion of childhood'' a process you still haven't elucidated.
As a child you attended a faith school with a fundamental christian ethos, you attended christian religious instruction classes, you attended christian worship. Your bringing wasn't non religious, it was christian. Despite the fact that you briefly stepped away from your christian upbringing it is clear that later you reverted back to the religious that your upbringing had promulgated in you. You folded back into the religion of your childhood. The very notion that you claim that after reading CS Lewis the bible, which you had previously studied but hadn't made sense began to make sense. Had you not been brought up in a christian manner that statement would be nonsensical as you'd never have studied the bible before - but of course you did, in the christian environments of your faith school and your sunday school.