Migrants to Europe will get better jobs and lifestyles easily. And the streets of New York are paved with gold.
It took my family over a hundred years since immigration to the USA to really integrate such that I don't feel even slightly foreign. And honestly the USA changed us more than we changed the USA. And I agree with that - it's rude to make demands as a guest or newcomer.
The would maybe do if they had non trivial skills; tech uni degrees etc. Most can do only manual labor and/or have little or no education: we do not have jobs for those skillsets enough for natives let alone immigrants. A friend of mine fled for economic reasons (and more freedom) years ago: he was a surgeon and coder and (secretly) entrepreneur in his country; absolutely no issues getting a job and integrating.
It took my family over a hundred years since immigration to the USA to really integrate such that I don't feel even slightly foreign. And honestly the USA changed us more than we changed the USA. And I agree with that - it's rude to make demands as a guest or newcomer.