Publishing the image below is (allegedly) what got 12 French citizens murdered today in France. Assimilation works while multiculturalism leads to a clash of values and eventually even war. Formula: Diversity + Proximity = War
The best thing Europe could do is to stem the massive tide of immigration and try to assimilate those that have already immigrated. Those that are criminals should be sent back to their countries of origin to practice whatever form of Shariah they want to practice and allow the people of the West to practice freedom, democracy and republicanism.
We need to stop apologizing for who we are. It only emboldens these irrational medievalists.
Note: most of this ideology is funded and supported by a certain key Arab state that produces a lot of oil.