Religion in Schools and Government

I was looking at the school calendar and realized that we had Good Friday off. The calendar didn't say Good Friday on that day, but the Friday before Easter is coincidentally a day off every year. While Passover, an important Jewish religion, is just a few days before and school is in session. This I think is because that our country is Christian dominated. This reminded of even for Christian influences in public school in government. I thought back to elementary school when we recited the pledge of allegiance every morning. The line "One nation under God" is an obvious Christian influence. When you go to trial, you have to swear on the Bible too. I also began to think of people who protest against things such as gay marriage because of religion. Although it is not said that this is a reason I think it has impact on it. Although    we have separation of church an state, I really don't think it is. In my opinion, government and school should not have any religion opinions or influence at all. Because of the obvious fact that not everyone has the same religion or has a religion at all, so if religion is used it's just another thing that makes people not agree on things.