after 23 years in the country you cannot communicate properly in the Polish language.
Who says I can't? Some of my learners are C1 and still turn up for lessons as regular as clockwork. If you are saying what I think you're saying, in that people who haven't mastered the language should be "sent back", then that means half the Poles in Britain I expect.
Your perceived nationalist agenda is tedious, and I must be keeping you from your white supremacist friends with their garage porn, so run along, there's a good chap.