From what I can see, Goldtits and his friends were having a laugh, albeit having a laugh by offending others. From hanging around them, this is sorta normal for them and, lemme be honest, I usually have a bit of humour by offending others too. I keep it to those in a certain discord group though.
However, it's in your place to know when enough is enough, and you went about it the wrong way. If you're being offended, you ask them politely to stop. If they don't stop, this is when you leave and I know that's easier said than done because the server's game mode might of been fun, but if it's going to be hosted by people that you do not wish to be hanging around, then it's up to you to force yourself to leave.
I'm a bit upset at my friends for going far like this, but it's also in your place to walk away from stuff that's bothering you. Had it been another server, and you can talk to an admin, you should do that first, then go. Like I said, I understand you being upset, but it's in your place to go when it gets too much.
