What are you talking about?
Polish people have been coming to the UK for decades, decades and deaces Loads came here to South Wales Valleys to work down the mines alone My old street alone had a number of Polish (and Italian families) thanks the old Pit and WW2 days, even my grandfather came over from Ireland to work down the Pits. That's before Blair allowed the right to for all of Eastern Europe to come, Hell even Jack The Ripper was meant to be Polish
Go to Merthyr in South Wales and see a massive Polish community. The issue was that, unlike in the old days of heavy industry, there's not many jobs to go around like before and massive issues over enough housing, not that the British want to work anymore since COVID mind
Blair said only 100,000 would come over and we got 3 million instead. That's the issue over free movement