What teachings of Christianity? Throughout the Middle Ages, Christians were happy to burn people alive if they weren't Christian or weren't the right kind of Christian even. Are you going to try to convince me now that all these countless religious leaders throughout many centuries were wrong, and that I should instead listen to you, some random person on the internet who likely isn't even a devout Christian, on what the "correct" teachings are?

It's the same with Islam. I can easily find many Islamic religious leaders who will happily tell me that violence to promote their brand of Islam is good and right. Are you even a Muslim? No? Then why should I believe you over them about what the "correct" teachings are?