When it collapses the Moslems will simply return to their own country or another country which tolerates them being there...
Islam does not recognize nation borders...it sees borders as preventing Islam from being worldwide dominance. This is why they can go into all nations and then build ISlamicr bases and community centers, schools and hospitals here to isolate themselves until their numbers are great enough to override our system of governance and remove our freedoms.
Islam is a military force that moves by the numbers...and builds it’s “empire” in the host nations....it does not have borders...it does not recognize state borders.
That’s exactly what I witnessed while in Iraq...Islam is dangerous when you look at the internal divisions...Shia and Sunni are just the basic levels...it’s more complicated as one enters into the lower levels...there was never any peace...always death!