.........This is simply not true, and, worse, it is one of the stock racist excuses for keeping immigrants out. Low wages are created by employers paying low wages because they can.

This is one of the many drawbacks of capitalism. Both Labour and Conservatives could have legislated against the more severe impact of these realities but chose not to. I wonder why not?
'Twould appear I get it rather faster than your goodself!

To turn your own argument around it could be argued that in a normal population 15.7% are below average intelligence and 6.4% Cognitively impaired. Therefore a valid argument would be that 22.1% of the electorate probably had no idea what they were voting for and what way they voted is anybodies guess. Trying to argue a minority of a certain mindset stole the referendum is pure hokum, as you very well know.
https://www.youtube.com/watch?v=nZO9JGSScMQ