This is the level of thinking of the typical LIV.
They breed like vermin and eat out our substance.
Hence, the 19T + acknowledged Federal Debt.
UK has EU immigrants and Commonwealth immigrants. EU immigrants are mostly Poles. They are very likely to go back to Poland once they have earned enough money. Commonwealth immigrants are mostly from India, Pakistan, Bangladesh and Nigeria. They are there to stay. Brexit would block off the Poles, but letting in immigrants from Commonwealth was never about the EU.