If you combine all of the immigrants/invaders who have been welcome since decades the numbers are way higher.
I guess a core of hardened fighters is in the tens of thousands and a good following of 2 to 10 millions. Further add the "leftist" who will team up with the invaders and you have a viable, although chaotic, army.
Many Europoors are so afraid that they act like "uh, can't be... well, what about Nelson Mandela!?!"... all the while they're being boiled in the new Weimar Republic which is even bigger than their loose, overstretched anus.
Caesar before Rome fell...
"Lube et glideo."