There is a list of attributes of fascism and authoritarianism and Republicans are checking all the boxes now.
Fascism, a latent undercurrent in our body politic, was revitalized when Trump began calling the press “fake news.” Our responsibility is to keep this existential threat from spreading further, destroying our institutions and the rule of law, and replacing democracy.
“If you're looking to see if somebody's going to be a strongman, what you find is even when they start campaigning, they immediately start trying to turn the public against the press, saying [the press is] biased and that they are the truth teller against the establishment," said Ben-Ghiat. As that leader's supporters increasingly come to believe that he is the only source of truth, she said, they will be primed to believe his claims of a stolen election.
"What Trump is doing is, he's asking for personal loyalty to him to outweigh the rule of law," said Jason Stanley, professor of philosophy at Yale University and author of How Fascism Works: The Politics of Us and Them. "We see this in any authoritarian takeover of a system. We see the authoritarian say, 'Devotion to me is more important than the rule of law.”
Another opinion:
https://www.huffpost.com/entry/opinion-trump-2024-election-executive-branch-power-grab_n_64d568dae4b0f17c0907de68
Trump’s Plan To Go Full-On Fascist If He Wins In 2024
If elected, the former president and his allies are planning a wholesale restructuring of the executive branch that would give him sweeping presidential power.