I think "albeit modest" is the key. People want to make money, and parliamentary centrism is the governmental form most conducive to that.
As for Germany, I was there -- recently. Berlin, Wolfsburg, Munich, Vienna, Sazburg, towns in and around. And I'm going back next week. There may be concentrations of immigrants, but I found that most places were not "overrun." This is just color reporting, whipping up hysteria. You can always point to some slimy, unkempt degenerate and generalize that into the rule. I have no doubt that some fvcked up **** happens, such as the Cologne sexual assaults of a few months ago. This is what police and security forces are for.
Crudely put: seventy years ago Germans killed off anybody who wasn't of their narrowly-defined ethnic background. Now we want to cry bloody murder when a few more darkies get in there? Uncool! If white Germans want to have more people they should have more white, nordic kids. Simple.