I have no problem with those that want to work
Assuming that, the best will in the world notwithstanding, they can actually get any.
obey our laws
Just like the Brits do / assuming that they can understand them / notwithstanding how silly some of them are (not least those to which you draw our attention with regard to state benefits, etc.)
and make a contribution to our Society.
Well, I'm an immigrant myself; do you suppose that I've done any such thing?
The rest can go home and the sooner the better.
Well, were "the rest" to include me (and I'm not saying that it does), you'd doubtless still be complaining that even "going home" isn't good enough for me, since from my "home" position I'd continue to bleed the English dry...
Might you therefore perhaps advocate in UK the kind of seccessive arrangement that has just befallen Serbia (in the splintering from it of Kosovo), with Scotland, Wales and the quaintly misnamed "Northern Ireland" breaking away from England so that there is no longer anything that could reasonably continue to be called an "United Kingdom"?
Best,
Alistair