Hitler wiped out the Jews in Europe. The Holocaust gets a lot of media attention but the Jews weren't the only ones persecuted. All ethnic groups in Germany at the time, asians, africans, people with deformities, disabled people, sick people like people with cancer, midgets and anyone who didn't fit the "aryan" profile were sent to concentrations camps/medical experiments/exterminated.
It was based on the theories concocted by Max Weber and his ilk.. philosophers, academics in Germany at the time came together and wrote the third reich without consulting the general public. To them it was beautiful and perfect, a society which preserves the human species, but in reality it lacked the practicalities necessary to make society function. Hence Hitler took advantage of one of those loopholes. After Nazism, politicians no longer consulted philosophers and academics. Policies were designed to disregard their inputs. Hence even today, PhDs aren't respected by political pundits, politicians, people in power, elites etc.
The European Union are not Muslim apologists. The terrorist profile - Muslim are covert operations orchestrated by nations at war with the EU... that being the threat of Euros as global trade currency. At present it's $US. Each terrorist attack is a blow to a nation's budget.
www.theatlantic.com/magazine/archive/2015/04/is-it-time-for-the-jews-to-leave-europe/386279/
Hitler did it. Is it happening again now with muslim refugees as Nazi's proxy warriors?