as a casual observer living in the uk, what brexit has done is stopped the influx of highly educated and economically contributing people from the EU, and instead replaced them with people who are claiming "asylum" from asian and african countries
As a long term Brit I kind of get that impression too although there has been a lot of regular immigration also. I bet the brexit voters who tended not to be keen on immigration have been pleased with that.
Also a lot of regular Brits have moved abroad. Dyson who famously advocated for brexit to help Britain moved to Singapore, my friends have moved to France, Portugal, Spain and Dubai.
Downvotes because while you're right it has reduced immigration from the EU, the vast majority of post-Brexit migration to the UK has no been asylum seekers, and most asylum seekers have not been Asian or African.
downvotes ahoy