I have often wondered what the purpose of mass-immigration actually is. I have stated before that the alleged economic benefits are spurious, which leads me to conclude it is one of three things:
1) To breakdown national identity in preparation for a world government.
2) To fracture and factionalise society, so that we're disunited and therefore powerless to challenge the powers that be (TPTB).
3) To fracture and factionalise society, with the ultimate objective being a civil war and population reduction.
(2) & (3) are similar, but with different objectives. TPTB will deliberately foment mutual distrust and antagonism between the different competing groups. However, with (2) the objective will be that TPTB will offer a solution to stop the unrest, which will be an Orwellian police state who totally restricts our liberty in order to guarantee peace.
I cannot think of any other objectives that than those three scenarios.
This thread seems to blame migrants, however as I have previously stated, that is not fair. It is the Western people who have repeatedly elected governments that destabilise the Middle East, in particular, and support Israel. We have elections and, in the UK at least, have never deviated from the two major parties which have failed us again and again. The middle classes are affluent and insulated from the effects of it all and, even now, don't seem to either notice or care about what is happening.