MIGRANTS AND IMMIGRANTS - NET BENEFIT OR NOT IS IMMATERIAL

Recent "academic research" shows that Migrants are of net benefit to the UK economy?

Not wishing to be too disrespectful to these academics it's absolutely clear to anyone that migration at existing levels is unacceptable to long-standing UK residents.  Whether or not migration and immigration has a net benefit is therefore of little relevance.
Likewise waking up to a brand new double-decker bus on the drive would be horrifying, irritating, and bring on the urge to get rid of it as soon as possible -if it's not what you want. The difference of course is that the bus is definitely valuable and the migrants might not be (depending upon the particular bit of "research" cited).

With hard-core Immigrants there's even more to consider. Especially how many of the illegal variety have so far "slipped" into the UK? No one over there seems to have the slightest idea!! 

Judging by my last UK sortie (and I accept it is a perception only marginally more accurate than much academic "research") there is a marked change from even just ten years ago. Boston, Spalding, Wolverhampton, London, Manchester, Rhyl, Torquay, Ambleside, Newquay, Brighton, Dover, Southampton, Crewe, Chelmsford, Clacton, .......the list goes on and on and on. If you  visit these places be prepared to be amazed at the number of people overheard in the street not speaking English. The impression - often because of their surreptitious behaviour - is that many might have entered the UK illegally. Is it time to wonder what is the actual population of the UK taking into account the Illegals? Judging the density of population by road congestion ( why not ? ) the UK is already full to overflowing!

Note also the apparent growing community of wandering illegal immigrants (can you believe that even they claim benefit?). Many will be sleeping "rough", squatting, and probably adding to the UK's unsolved crime statistics? 

Even if it was relevant, would research show that these fellows too are of net benefit to the UK?  How long will it take UK political parties to wake up? When will they realise that huge numbers of their Citizens have had enough and are hungry for change?

How long before the UK bucks up? When will it recognises its time for:

1. Properly controlled immigration - including control of migration to UK from EU countries; and

2. a concerted effort to identify illegal immigrants and deal with them helpfully. If possible expel  them otherwise isolate them to the extent they modify their domiciliary aspirations.

Can any of this be achieved while UK remains part of the EU?