Lots of comments, but many have a fundamental misunderstanding. The vast majority of those reaching here are NOT 'refugees' - they are economic migrants.
The assorted groups who want to let everyone in refuse to call them anything but 'refugees', and it's just grossly misleading.
When asked "if you really want to let everyone in, just WHAT is the realistic number we could accept" (given our own well publicised problems - more food banks anyone?!) they cannot answer.
When challenged with "and if you actually want to admit 2 or 3 hundred thousand such people, where would they go?" - they say "lots of room, look at a map".
BUT -- when challenged with "fine, maybe the UK isn't quite as crowded as many think" (our population density is higher than most of Europe though), and re land use, "yes, we could indeed concrete it over, whole new towns for migrants. JUST THINK how popular that would be with voters all round the country . . .care to stand as an MP on that platform??" - the proposers of unlimited immigration tend to go very quiet.
NB :- As I understand the figures, actual GENUINE refugees have a very good acceptance rate -- it just takes quite a while to process them as there have to be checks, unless anyone wants to admit a couple more ISIL terrorists without too many questions?