Refusing service because of political party.

[Shell B]

That would very much depend on each case for me. I couldn't make a broad moral statement regarding refusal of service.

A member of a gang doesn't have to be in a group of gang members to be dangerous. I think it would be fine to reject them if they were with family, though I wouldn't recommend it.

I think the law is flawed because of the two-party system. On certain topics, it gets very twisted as it's dribbled back and forth between two opposing factions. This is one of those topics. All in all, I think people being unable to refuse people based on color, gender and sexual orientation is about as good as it's going to get, and that's good enough for me.