Governments of both colours allowed mass migration & will continue to allow it. They'll tell you they're only bringing in "the brightest and the best" and keeping out those awful boat people, but your eyes and ears know this isn't true. I have no problem with it. I'm a migrant , it would be bad form if I complained. I imagine it's the same in the US.
You can't put the genie back in the rose coloured bottle and fantasise about a homogeneous land where the milkman knew your name and whistled a happy tune . It's gone.
I took my kids to the mosque open day , we got a look round the place and had some lovely food. I've also got lots of experience teaching Lebanese, Iraqi, and Turkish kids. I didn't get the impression they wanted to white ant the country from within. To help with assimilation the AFL could send some ambassadors to their schools; they are lost to soccer.
Housing is an issue only in that we can't build them quick enough. There are a huge amount of empty homes in the towns I service for work. Dereliction is theft & vandalism .