EDIT: I'm out of posts for the day, here's my reply.
I mean people being able to communicate and empathize with eachother.
No one works
No one can get jobs (all the fake job postings and applications)
No one is dating
etc etc. These are all fundamentally the result of the destruction of social cohesion. This is a well known cyclical phenomenon and immigration is absolutely the opposite thing you should be doing in this phase of the cycle.
EDIT2: You can have large portions of the population unemployed and unemployment at historic lows if enough people have dropped out of the work force. According to the BLS that appears to be exactly what has happened in the US and is consistent with what I'm arguing.
The fact that two people from some pairings of cultures don't socially cohere as well generally, on average than two people from the same culture shouldn't be a controversial thought. It's demonstrably a non-negligible issue. I've seen it undeniably harm teams and make everybody basically miserable, first hand, three or four times. Of course if one uses that fact to attempt to spread hatred, then that is a problem.
Why do this curt shitcoating of another person's honest opinion?
Edit: And as a sad disclaimer, I am not defending the parent's person. I do not know them. I am only criticizing your response.
Regarding "no one works", regardless of whether it's an exaggeration, it does not mean "nobody is employed".
https://www.statista.com/statistics/192398/employment-rate-i...