@ sashh - At least you have a 'few' choices, there are no humanist or atheist schools.
Nonsense, I went to a 'normal' state school with no religious worship whatsoever, as does my eldest dd.
It's perfectly easy to find a school that doesn't indoctrinate you in a religion. Obviously, all schools teach you about religions in general, not to convert you, but so that you understand the world we live in - just as they teach you about the people in the past without expecting you to time travel.
Clearly your RE teaching wasn't very good, or you'd have a greater understanding of people with different faiths.
BTW I'm not Christian, but have no problems with living in a Christian country, people celebrating XMas, Christian traditions, songs, history etc. If I don't like the fact I'm living in a Christian country, I could move to a Republic such as the US, France etc. The UK is NOT a secular country. Get over it.