Eddie...I have had similar experiences, since the Referendum was announced.
It has mostly, but not exclusively comes from the same sort of people....the ones that refer to getting a pint of milk, as "going down the P******"
I heard similar things on some occasions, from the long-term work-shy, who blame "bloody immigrants" ( mostly Poles ) on their inability to obtain and keep a job.
One chap, who lived in Merthyr Tydfil, who had been "on the dole" for at least 10 years, complained about the meat packing place up the road ( St. Merryn Meat Ltd ) where "all the Poles work"
I asked him if he had any Polish friends. He looked at me as if I were mad !
"Polish friends ? " What would I want Polish friends for ?
"Well, I said, perhaps if you did, you could ask them if there was any jobs going at the place where they worked ?"
These kind of views are widespread, especially amongst the less well educated.