That was certainly not the case with Trumpism.
It's the same old forces of oligarchy and rightwing extremism fomenting an astroturf (not genuine grassroots) "populism" around a cultish figure whose primary skill is pushing the buttons of grievance and fear, identifying "enemies within" who are different due to their race, religion, ideology, or cultural/sexual identity.
The rule of law (in countries with a tradition of constitutional protections) is steadily eroded by an increasingly authoritarian regime claiming emergency powers to justify suppressing dissent and political opposition.
The "fascist" label perhaps does not apply to authoritarian regimes like Russia, China, North Korea, Iran, Saudi Arabia, because they lacked legitimate democracy and/or privately owned means of production.
The fascist regimes headed by Mussolini, Hitler, and Trump were elected with populist support but were already in league with or soon colluded with industrial and business interests for mutual benefit.
All authoritarian regimes have much in common: tyranny, repression, brutality. Fascism mostly has different roots and is found in the Western world. What you call it is less important than what it is.