Abortion
Even God does not evoke such emotions when we doubt his existence. Some believe in Him, others don’t, and that’s it. In this case, faith or lack thereof does not end the argument. Every statement about abortion results in the fierce debate about whether to defend life or not, and if so, when it begins. And at this point, no one stops at their worldview but has to convince the opponent to it. The majority agrees that life is the highest value.