This attribute is not confined to fascism, but it is central to all fascism.
So, admit that the attribute is not exclusive to fascism, but paint it as such, anyway? Sock puppet tactic.
I suppose most historians would bump Trump's "nationalism"
See above, speaking of tactis. Also, "...tactics ...is only a small part of generalship. For a general must also be capable of furnishing military equipment and providing supplies for the men; he must be resourceful, active, careful, hardy and quick-witted; he must be both gentle and brutal, at once straightforward and designing, capable of both caution and surprise, lavish and rapacious, generous and mean, skillful in defense and attack; and there are many other qualifications, some natural, some acquired, that are necessary to one who would succeed as a general." - attributed to Socrates
Fetishization of youth.
Joe Biden, on video, 12/22/2019 - Wilmington, DE, after gathering a bunch of kids around him] "Hey, all the kids... come up here... I want to setr the record straight on a couple of things... I got hairy legs that turned blond in the sun. The kids used to reach into the pool and rub my legs down..." yeah, okay [?]
Fetishization of masculinity
Joe Biden - same speech as above "... CornPop was a bad dude... but I was smart, then [as opposed to now?] , I said, 'When I tell ya to get off the [diving] board, ya get off the board..."
Leader cult
Trump is a leader. The head of an organization of over 535 companies, of which all of maybe six have been bankrupted by him for weak production. 6 of 535, that's still a 99% success rate. That's no cult; that's the American dream. Sorry you're opposed.
Lost-golden-age syndrome.
So, what is the Progressive's golden age? 1848 - the Marx/Engels publication of the Communist Manifesto. Some golden age. A philosophy that, everywhere tried, has never lasted more than 75 years [USSR], and typically lasts 40 years, because that's what happens when you run out of other peoples' money, and don't know how to create wealth yourself. Not to mention that there is no example of a country that began via Socialism/Communism, because nobody is sufficiently rich to syphon off their wealth to start a nation.
Self-definition by opposition
But then you say "Trump invents or exaggerates every threat..." but that's descriptive of the threat, not self-definition, as if threats do not, of their own accord, exaggerate their power.
Mass mobilization and mass party.
Yeah. kind of like when Madison anticipated that the United States would expand and populate, and allowed for that increase to have a system of expanding representation in Congress, based on a Census, which began in 1790. Was that fascist?
Hierarchical party structure and tendency to purge the disloyal.
Hmmm? Article I, Article II, Article III... Article I, sec. 21, sec. 3, Article II, sec. 4... so, the US Constitution is fascist?
Theatricality
Reagan? A fascist? Lincoln, assassinated by an actor? Lincoln calling America "the last best hope of earth" was just fascist rhetoric?
The fascist derby
Let's see.... Socrates, Joe Biden, the American Dream, Marx/Engels, Madison, Reagan, and Lincoln, and the Constitution all fit the fascist bill. You said it, I didn't. or, maybe not, after all. Yeah, seems exaggerated to me, too.