While I may disagree with the parent post, I do not agree with this one either. Just because some people did horrible things in the past from the country that I had no control over does not mean that these evil things should be done to me, too. It does not justify it. Not at all.
The point is that many of the Rule Britannia white nationalists in the UK point out anyone who is not white Anglo Saxon as immigrants who should all be deported when in fact many of the wide range of ethnicities that call the UK home first settled there during the days of empire or from commonwealth countries.
I guess it’s not unlike the situation with the recent treatment of Puerto Rico by the US.
I did not intend to say that legal immigration is an "evil thing". As far as I am concerned the parent comment tried to justify it in such a way that just because some people from England colonized some parts of the planet through aggression in the past, then somehow it necessarily follows that people who live in England today must agree to open borders, or say, illegal immigration. Illegal immigration because, "after all, people from England colonized the planet through aggression before! You deserve it!". See what I mean? This is what I thought the parent meant. It might be the case that I am biased because I did argue with too many people holding this belief: "your ancestors did terrible things, therefore you should keep quiet and take it!". I do not agree. In case this is not what the parent meant, or you think he meant something else, please do not hesitate to correct me.