Anyway, the issue is over with unless the next one comes along and that's inevitable.
I understand the problem of ignoring someone who's out for a fight and will say anything to excite anger, but realize also that these kind of people thrive on the emotional responses you give them. Getting all "FUCK YOU", "I want to kill you", or wall of text serious on them is practically useless. That's when the art of trolling needs to be learned in order to handle yourself better. The simplest advice is that, if you can't ignore their faggotry, play into it with satire and/or wit. Creativity and patience counts a lot too. The rule is, whoever shows that they're offended first, loses.
I mean for example this in case:
Mention how glorious western culture is, and the fact since it steals from other cultures, you don't have to leave your house or pay for travelling costs to enjoy bits of the world.
Things like that.