I'd use a different description.
Instead of socially disadvantaged, I'd say unwilling to assimilate into the established national culture.
In other words they are invaders who seek to impose the culture they brought with them rather to assimilate.
Furthermore, those who actually do wish to integrate, are intimidated into not integrating.
You've defined a Muslim living in a non-Muslim nation.
Islam is a terrorist organization. Nations who fail to designate and treat it such are bound to eat of its evil fruit.
