The main differece between population movements before, and the ones now is intergration. If I am Norman/Viking, I have fully intergrated into the 'indigenous' population
Muslim immigrants do everything to avoid intergration. They have their own areas, their own religion, their own language, their women are isolated and hidden from society at large, they eat different food, they don't drink alcohol, or eat pork.
They have different religous holidays, they look different, they have their own 'bible', they have their own Sharia law, they have their own religous schools, they have different morals and standards, they have their own butchers, they slaughter their animals differently, they dress differently, they have different churches.
That's the difference Coljack, which you fail to appreciate. They are and always will be DIFFERENT. They are determined to stay DIFFERENT, and want to impose their differences on us, rather than blending in and changing to OUR ways.
Human beings as a rule seek out people with something in common with them. It will never work. Their persistant differences mean big problems ahead, for us, our society and our children. Problems that we just don't need, and aren't worth the hassle.
This is the differece between us and them. A difference that is incompatible with a christian democracy. Do you get it now Coljack?