how do u react when someone insults what u love?

I WILL KILL THEM!

I WILL KILL THEM AND STEAL THEIR SOUL

If it's a fandom or an OTP or a fictional character, I chase them down and kill them or threaten them till they take it back. If it's anything else I'll ignore them.

I say an insulting comeback and flip them off.

I tackle them then threatin to kill them unless they take the insult back

Eat potato