Sadly "the West" have been over generous in the last 30 or 40 years with their welcome to immigrants from all over the world.
While immigrants have always been welcomed in the UK (and other European countries) these were in relatively small numbers and their arrival did not affect the country too much.
But now the indigenous populations around Europe have had enough.
We now have cities where almost 50% of the population are immigrants, or the children of immigrants.
We have schools were 100% of the children are "non UK white", and where many cant speak English, and English is not spoken as the main language at home.
We have some groups of ethnic people tying to set up their own laws and rules, and ignore the official UK rules.
We have honour killings, female genital mutilation, arranged marriages, terrorist on the streets and so on.
We let in people like those from Somalia, whose country has been at war for decades, and they thank us by setting up huge drug running gangs and terrorizing the streets in the areas where they live.
I have been predicting for years that we will have a civil war in the country between the "locals" and the "immigrants".
Seeing those pictures from Germany I can see a situation in the future where Muslim shops and businesses are "targeted" the same way Jewish shops and business were targeted in the 1930s.
They will be set on fire, and the owners driven out of business, the same way Jewish businesses were treated.
We have seen recently in America with the shooting of the two policemen in their car by a black man (and other crimes by both whites and blacks) how their attempt at a racial mix is not working.
Sadly I think Europe also has a dodgy future with this failed attempt of a racial mix and I can see it getting VERY nasty in the next few years.