He's right on this one, though. Again, I'm having to point out that a large number of racial minority communities and second-generation immigrant communities voted for Leave; you can't simply apply the American perspective to this and expect it to work. There was obviously xenophobia in this campaign; but there was also an incredibly sharp class divide that transcended typical political alignments. Higher-income brackets voted Remain, lower-income brackets voted Leave - because they've not seen any of the gains from free trade or globalization. It's just lead to their skills being devalued by an influx of foreign labour, and their industries going under because they can't compete with cheap labour abroad.
There's more to it than that - this would never have been a problem if the proceeds of free trade had been used to support these communities, provide them with new jobs. I've lived in north Wales; the place is still destitute since Thatcher killed the mining communities and that was three decades ago. But the key point that remains is that the current political echelons have overseen a thirty year decline in the living standards of the old industrial class; and they're lashing out. Anger and despair don't take the form of a nicely worded argument full of logical links and well-supported data. It takes the form of an establishment put to the sword, regardless of their provenance.