This is a personal attack and those will get you banned here. So will nationalistic or political flamewar, which you've crossed into several times. So please read the rules (https://news.ycombinator.com/newsguidelines.html) and don't do these things on HN.
Who's the 'our' that's taking ownership of culture here?
Also, just logically speaking, the parent wasn't talking about assimilation into a culture they despise, but rather about subordination. I don't agree with their perspective, but I'm more sympathetic to it than I am to yours.
The number of apologists for colonialism on this thread is depressing.
A case can be made that since the British looted foreign countries to create their infrastructure it is only fair that the citizens of those countries be allowed to enjoy the fruits of their ancestors' labours.