Yes, I'll always prefer the non-toxic team. At the end of the day, it's still a game and people are slowly losing the mentality that it's for fun. Believe it or not, even bad players can pull it together when treated positively... Reacting to a bad situation just pours gasoline on the fire and when they're upset, of course, they'll play worse. Sometimes you just got to be the bigger person and pull everyone together.
There's always another game even if you lose (Stats will eventually balance out). Just don't stress about something you won't even remember in a few days.
I dunno, I'm Canadian (No idea your culture) Just I was always raised to treat everyone properly.