Even "Make it 1975 Again", although I'm old enough to remember that even then people were lamenting the rise of foreign competition and the death of the cradle to grave factory job.

But that's what it's really about. Donald Trump is the manifestation of people's frustration that the past is the past and it isn't coming back. The pace of change keeps accelerating, and the effects of it on those unprepared for the new reality of the Info Age were greatly exacerbated by the Great Recession. And so we have Donald Trump.

But I do think you are oversimplifying here. Most Trump voters are not racists, sexists, or bigots of any kind. There is certainly a subset that longs for 1950's racism and sexism, but I think that's a very small group. Most really long for other characteristics of that bygone era, which nostalgia makes them romanticize, as people tend to do.

IMO, anti-Trumpies like us do need to be careful about over-generalizing. "Make America Great Again" is not rooted in racism - it is rooted in whatever each individual Trump supporter romanticizes about the past. Fence sitters tend to flip their bird, or just tune out, when we lump them all together at their lowest level.

The Basket of Deplorables - IMO that is one of several things that may have cost Hillary the election. We should lose that concept immediately.