Strikes me that Trump is drawing out what is possibly unfairly described as the politics of the South.
At any rate, the Republicans captured that group from the Democrats several decades ago. And now they are expressing themselves again, although oddly through the medium of a New York billionaire.
So the conservatives can't ride that horse to victory any more. They must be thinking about a new coalition, having previously cobbled together a group that included Evangelicals and rebel yellers and found it all went South.
But who can they lull into an alliance? Their philosophy simply doesn't have a pluralist appeal.