vwvic I really feel for your poor daughter. I think that the conflict you are causing in her little mind is something just as bad as what the religious zealot you refer to in your post was seeking to do.
For the record I am not a card carrying Christian and I consider myself agnostic. I was brought up in a not particualrly religious household - atheist father, god-fearing although not church going mother. I went to Sunday school (because my mates did and I felt I was missing out because they got to make crosses out of reeds, colour in pictures of bible stories and have squash and biscuits) and had all the usual school assemblies with attendant hymn singing and praying, grace before meals, nativity plays, trecks to local church for harvest festival, Easter, Christmas etc. It was part of my education and cultural upbringing. Nothing was reinforced at home and I have still managed to get where I am today - an agnostic and a devout sceptic. It washed over me because it was not reinforced at home. It was simply not really a topic of discussion. Please note that not reinforcing it did not ential ramming it down my throat that it was all a load of rubbish.
What I am trying to say to you is that what you are doing to your daugter might be counter productive. In forcing the fact that it is all untrue down her throat you could turn her towards it, start to question it more or make her more sensitive to it. Surely this is what you are trying to avoid.
I work with a chap with exactly the same views as you - it turns out he is railing against the fact that he was brought up in a religious household. I think that going to far to either end of the spectrum could potentially cause problems for children in later life.
My parenting philosophy is totally against ramming anything down your childrens' throats or imposing certain values, views or radical lifestyle choices upon them based on your own prejudices and preconceptions. Let them be. They are on a journey of discovery that you have already been on. Don't we as parents owe them the chance to go on that journey unimpeded as far as is possible?
My son has just started in reception. We've never touched on religion with him at home (my husband is a non practicing muslim too) and he is enjoying his hymn singing and religious stories in school, just as much as his literacy, numeracy, PE, computer work etc. As his mother, that's absolutely fantastic as far as I'm concerned, all I'm interested in is that he is happy and comfortable at school and finds whatever he does there to be stimulating and enjoyable. I'd never dream of imposing my religious views, such as they are on him. He learns about all world religions as far as I'm aware and I would certainly reinforce that wider learning at home too.
I think that if a religious zealot made those comments at school to your daughter you have justifiable grounds to make a written complaint to headteacher, the governors and to the LEA and seek their responses accordingly.
In the meantime, my advice to you is let your daughter be, let her enjoy her school experiences as wide and varied as they may be. You're probably riasing her awarness of all this, making her feel worried and mixed up and placing her in a conflict situation of not knowing what to do for the best to please you as her parents and her teachers and peers. The last thing children want to feel at school is different and socially isolated. Please lighten up a bit I really feel for this poor little girl.