Also heard about US/Mexico borders, green card quotas, h-b1, etc. You practice immigration quotas (which may be smart), we do not. I would be interested to see the outcome of a massive muslim immigration in the US.
edit: No, we actually don't, my mistake. But there seems to exists unofficial expulsions and regularization quotas to meet every year.
Sorry, 50k is not massive, let's talk about a couple of millions.
The only common factor being their economic status.
But the Arab French have integrated culturally and are highly successful artists, athletes, businessmen, etc. Its only a matter of time before they deliver on the promise of immigration.
P.S. I'm a Muslim of South Asian origin born in Saudi Arabia.