Comparison isn't politically correct I admit, but it is appropriate. Additionally, we're discussing organized exploitation of hundreds of millions of people...
Just to be clear, I'm not really advocating former colonies have the moral grounds to demand reparations, but it is extremely childish (not to mention legally dubious) to compare to Viking raids or feudal politics. If we could dispense with that, we could have a serious discussion.
I didn't condemn Britain, Hong Kong comparison was a response to something else.
On the other side, wherever there's a highly developed part of a country, people from that part often feel antipathy for people from other parts who are coming there "to steal their jobs and places at their schools and generally exploit the fact that they are so developed".
Bookmarks