I don't think many of his fans support him for his anti-globalism... Up till a couple months ago almost the entire party professed to be "free trade"..
It is his personality(lack thereof), his promises & tv show status that attracts them..........
He has tapped into something for sure. As has Bernie. I don't believe this will go away, certainly someone will try to tap into it...... I certainly hope so..
see your confusing what the politicians want with what the people actually want. Its not a coincidence perot was a republican. The seeds for nationalism are already in the GOP. In fact before reagan that was what the party ran on. America First.
btw if both bernie and trump who are running as populists lose why would anyone tap into it in the future? The American people would have resoundingly confirmed that status quo politics is what they want.