Earlier quoted context omitted.
Accepting immigrants who desperately want to come is nothing like taking resources by force.
True, but the parent post did not mention use of force. We cannot deny that there is a brain drain in many third world countries that desperately need well trained workers that is accelerated by acceptance of immigrants into developed nations like the US. Who’s going to lead these countries into better governance and economic improvement if all the talent is incentivized to leave their home countries for greener past…
In contrast, it would be a terrible thing to forcibly lock people into their birth countries to stop brain drain.