His platform is Americanism.
With all due respect, anyone who thinks his platform is "Americanism" has a twisted view of what America is. Trump's a man who believes America is not great, and he seems to have no concept that at the core of "America" is its beautiful Constitution.
You don't hear him advocate for freedom from government, individualism, federalism, weak central government, and other foundational tenets of America.
(And if you ever
do hear him advocate for something, just wait a few days, and you'll hear him say the opposite, of course.)
So his platform has nothing to do with true Americanism.
Instead, he advocates for a nationalism that's coupled with a strong(man) central government and a focus on business. What did I just describe? Fascism.
I don't use that term lightly or in the colloquial sense. I mean it as a form of government that can be legitimately debated. I personally don't find Fascism to my preference. I also think it's not "American".
But I'm willing to listen to arguments from Trump supporters who'd like to try to convince me otherwise.