atheists: do you argue with your parents about god?

[curious]

I can't do it. My parents are christians, but when i get real heated up i get down to the raw truths about life and what god really is and i go full iron man on them with my knowledge but when they seem confused and i make progress i feel bad. Like telling a sweet child that santa isn't real. I love my parents. Sometimes i think that if i somehow i make them find out that god is not real, that they will break down wmotionally. But i just get really heated up sometimes when they try to convert me. How do you deal with this situation?