and inability to make non-European newcomers assimilate
This shifts the burden to the host.
The only thing Western hosts can be accused of is the supreme stupidity of allowing any foreigners - white, black, and in-between - to settle in and dilute the native customs and culture.
If all Euro countries - Poland included - were a mixture of 10 different ethnic groups, art in its many forms would not exist. To write a book, the author needs a minimum market.
The same applies to forming an army...The US has a hard time recruiting for a multitude of reasons. I wouldn't be surprised if the millions of foreign scum were one of them.
Risking one's life defending your family, town, and the country is one thing.
Risking it to defend 40 million illegals, LGBT freaks, woke morons, the swamp, globalists, and Jewish scum that votes 78% against their best friend is another.