We've banned many accounts for antisemitic comments. If you want to see what that looks like, https://news.ycombinator.com/item?id=18132624 is an example from this thread. (You'll need to set 'showdead' to 'yes' in your profile to see it, because I'm not going to unkill it just to make a point.)

That's not what padraic7a posted, you can't do personal attacks here, and since it looks like you created this account just to do flamewar, I've banned it too.

https://news.ycombinator.com/newsguidelines.html