Christianity is a way of life, not a place you go to once or twice a week

That's YOUR interpretation of Christianity. Other Christians might not believe that Jesus was God, or that his death was as significant as his teachings, or that his teachings were infallible and/ or complete. But no doubt you wouldn't call them Christians at all.

And even allowing your statement for argument's sake, it's not A way of life, it's MANY ways of life, often mutually contradictory.