Basically, if you support anyone spreading hate speech and being toxic, you're an asshole.
If you support Brazilians sending death threats, you're an idiot.
If you support zombs' tweet, you're an idiot.
If you support racism, you're an idiot.
Yes, every region has stupid fans, with no exception. Stop generalizing as well, it doesn't help.
It's not that hard, just be nice, keep the banter light, and have fun.