Somebody is hellbent on turning western Europe into third world shithole and those migrants sure as hell have neither capital, nor organization or common ideological ground to pull it off.
Not only Western Europe, the North America, Oceania (Australia and New Zealand), as well as countries in the Eastern Europe (Macedonia, Montenegro.etc) are witnessing unprecedented changes in their demographic makeup. A few countries in the East are still resisting the trend, such as Poland and Lithuania. But soon these countries will also change, as they are forced to accept hundreds of thousands of Sub-Saharans.