You might be on to something, but which parts of Reaganism?
More realistically though, Reagan is well in the past. I would suggest it is a rejection of Hastertism and Boehnerism that hasn't worked out for the base.
But really, I think it's even simpler. People feel under siege, and no major political establishment has taken them seriously. They have been bought with lip service for 25+ years and know it. Add in inaccurate and confusing "news", where one side continues with the lip service and a constant barrage of irrational thinking in justification of bad policy and the other side simply mocks them and blames them for all the worlds ills nonstop.
I consider Trump the "fuck me? no, fuck you!" moment.