It's a cycle the UK economy has got used to cheap labour, they could always coax people from the EU, one thing to come out of Brexit is the power of the workers and unions, they wouldn't have had all the recent strikes and forced wage increases if employers could have brought in cheaper overseas workers from the EU.
Unfortunately, that has happened in the care industry, we seem to have given up and let people stay at home on the dole because they don't fancy care workers jobs and ported foreign workers on less wages than Europeans.