Nice try, but no. I would say it is more an orthogonal thing.
Most of the worries of the common folk(left and right leaning) are not shared by the vocal pieces of the progressive movement.
Nice try? Look, mate, I intentionally only provided a reference to show that the idea of commonality between hard-left and hard-right is not a new one without going into the correctness of it or if it is the same as what you feel. My point is that it is not new and not weird. It is not even only an idea, as one can already observe both sides cooperating on some issues in Europe.
Apparently my bland non-committal comment was already provocative enough to get down-voted.
I don't have an inclination to debate it further as both of your comments are peppered with descriptions (salt-of-the-earth Trump/Brexit voter, common folk...) that suggest this would unlikely be fruitful.