I'm not even sure what "it's how the world works" is supposed to mean in this situation. It is an empirical fact that white people do have opinions on other cultures. You can say they shouldn't have them, or that they shouldn't be listened to, but that's not "how the world works". At best, it's how
you would like the world to work.
I was going to apologise and say I'd stop, but then I realised it would also be cultural appropriation to
understand English so I cannot in good conscience read that message until they repeat it in Spanish. Which they can't, because that's cultural appropriation.
(I expect it's a troll, but still)