I Hate Teachers

So, in class today, I came back into the room after I completed a late test (Long story, don't ask please), kids were playing religious Muslim music. I asked them to please stop because I'm atheist and it was offending me, and they started blabbing about stuff like "That's racist!" so I said "I will condemn your souls to hell." And then one of them said "Hell is apart of the Christian religion, you dumb-ass atheist bitch." The teacher did nothing. I told them I had a different definition of atheist then most. They said that I was a dumbass. They started chanting it. I told them to shut the hell up. The teacher got me in trouble for yelling and saying "hell." Am I the only one who's pissed at this teacher?