Then the penny dropped, it's simple,enough US citizens actually like fascism and to have a fascist such as him as their leader, much as enough Germans did in the 1930s.
Yes, and not just in the USA, everywhere, at all times, some proportion of the population actively wants, and another proportion of the population would happily tolerate, fascistic leadership, because it serves some strands of the human psyche.
We’ve got used to the idea that those proportions can never reach critical mass (it doesn’t need to be a majority, just some mysterious “enough”), but in doing so we’ve been crazily complacent, because they surely can, and do, under “the right” conditions.
I couldn’t put a finger on exactly what those conditions are, but they seem to me to involve things like economic reversal, combined with a widespread sense of being deprived of purpose, optimism, and identity ….. a collapse of hope might be the way to summarise it, and what fascism does is promise a better future, usually by stomping on someone else and taking theirs away.
Personally, I also think that capitalism predisposes towards fascism, because it has boom and bust cycles (economic reversals) inherent within it, because it has to create ever-rising tides of material hope (“false needs” in most cases), which for a significant proportion of the population can never come to pass (so rising tides of realisation and disappointment), because it demands low taxation and thereby low-quality or zero services (more disappointment), and because it has an in-built drive to monopoly, which translates into an in-built drive to concentration of power. The ultimate place becomes a state captured by monopolist capitalists, operating fascistically, with the population reduced to mere worker-consumer-drones, probably permanently at war, because that acts as an engine of control, as well as continually destroying value (it acts as a sort of “sink” for natural resources and labour, which is essential to keep the production-line from jamming solid with unwanted products). It’s the absolute antithesis of sustainable existence.
More dystopian novels, but I think they were written last time round.
The positive side of all this, of course, is that monopolistic capitalists can’t continue to accumulate riches beyond the dreams of avarice, and live lives of obscene power and luxury, if the fascistic leaders that they enable/need/sponsor get too carried away and nuke the place to a wasteland, so they ought to try to keep the demagogues on some sort of leash, and the wars bloody, destructive, and oppressive of spirit, but not actually existential threats. If we’re lucky.
Oh, and there are other forms of authoritarian leadership available, offering all the same sorts of misery, without much in the way of capitalism, so I’m not suggesting that monopolistic capitalism is the only route to widespread misery, just one of several.