Should I tell my friend that her new work friends are garbage?
That seems mean. Why would you want to insult her new friends?
I can't stand them because they always act like assholes around us, they come to our house so I don't get bored.
You should be a little bit nicer. They are new friends for her and she might want to keep them around. Calling people names is not very nice.
What, I'm giving my honest opinion. How is it good to be nice to assholes, even if my friends are the ones being hit by the name calling by them.
I am sorry that they are treating your friends like that. It is not nice of them to call them derogatory names. You shouldn't do it to them either since it might escalate things.