> Brown people existing doesn't hurt you.
Why did you feel the need to say "Brown people" instead of migrants? Are you trying to play the racist card? Poles are white and when they migrated en mass to Britain they were also making locals very unhappy.
Ironically most of the polish I know who came to Britain returned home to Poland for better prospects.
Adjusting for purchasing power parity, GDP per capita in Poland isn't far behind the UK.