> I don't think any country in Europe has stated they have a need for the numbers of people they have taken in, I think it has merely been a matter of conscience
See
http://www.bbc.co.uk/news/business-34172729
The simple facts are:
* The UK (especially England) is overcrowded compared to other large European countries - notably France - and has no real need for immigrants - unlike Germany
* Historic migration as referenced in the OP, based on warfare and conquering, is no template for the kind of modern-day migration we're discussing; it's a non sequitur
* When this non sequitur was first pointed out, bizarrely Mosaic responded with "if the current wave of mass migration includes more people engaging in a different form of warfare.....isn't that technological change?" - as if this was a benefit to persuade we "host societies" to accept warring migrants (who might otherwise be called terrorists) into our midsts, in order to further our civilisation!
All that said, I don't see migration as necessarily a bad thing; it's just that it needs to be controlled and it needs to be on our own terms, not forced upon us by the EU whose other member countries' needs and situations are very different to our own.