Same rules for all. If it lives and our characters are strong enough to defeat it they should have the option to attemt to do so. 'Real' world politics should not need to be reflected in games. It reminds me of some professors talking about the actuality and current relevance of literary classics as if relating to current events were the best way to make a classic.
True! But in some parts of the world (I think Europe?), the rating changes MASSIVELY if children can be killed/are seen dying. I think goblins are okay because they are 'monsters'. Even in D&D, goblins are evil and cruel. Whereas Tieflings are people, playable in the PHB.
But getting upset over it? Well, some people just aren't happy unless they're tilting at the next windmill.