That’s not gonna happen.
What will happen is they will be a permanent underclass costing a fortune and a number of lives each yaer.
We have that here. Just a different group.
The problem in both cases is ideology.
There are Christian “Arabs” meaning Maronites or Copts or Syriacs who live and PROSPER in France. We don’t hear about them as they work hard, do well and live at peace with their neighbours.
It is the “culture” or rather “anti-culture” of Islam that degenerates people. Ban Islam and problems are solved.
In the USA similarly among blacks, there is the Democrat culture problem — look at conservative blacks - heck, they are conservative first and foremost and they study hard, work hard, live well and prosper.
The difference is culture and the solution is cultural.
Once upon a time we offered to send them all back...