> "Hey, I'm a follower of so-and-so religion, and our religious text says that God made everything within a week. So, please let's not discuss topics

OK, that's reasonable. Some people are religious, their religion is more important to them than scientific truth, and there's not much use discussing this sort of thing with them as there is little common framework to discuss within.

But

> that are hurtful to me".

What? Why would a topic be "hurtful"? Or "offensive", as you also hear a lot. That's what I don't get.