What difference does it make if the workers come from eu or non eu countries? They're still foreign workers. The downward pressure on wages is fine - the poli

What difference does it make if the workers come from eu or non eu countries? They're still foreign workers. The downward pressure on wages is fine - the polish guy says I'll work for half that, the British guy says OK I'll work for a bit less than the polish guy. The polish guy says I'll go cheaper, the British guy says that's no longer best for me, I can earn more by doing X instead. More work done, and now there's 2 taxpayers instead of just one. Presumably the British guy went to another job, didn't just turn up their nose and say 'I'm not working for that! I'm claiming benefits / going to crime instead'