I voted against Brexit and work mainly with Europeans from Italy, Spain, France, Hungary and Poland. Many are my friends, in fact I have only a few true brits that I meet regularly (I'm in London, and tbh it is a very European city, most are of mixed heritage and many multilingual).
However, if you step out of London, the impression I get is most see Brexit as a partial success and are quite happy to see it continue. In fact there are now many converts to their cause, this is due to the fact that many of the negatives that had been predicted have either not happened or we are already recovering from them.
The only clear negative is the likely impact the the city, but to most Brits, this is a London issue and not relevant to them.