If you go by Trump's actions in his first term he was a pretty standard Republican, and mostly just cut taxes, with a lot of wild rhetoric which is part of his deal making shtick. In real terms I don't see Trump as uniquely authoritarian, probably less so than Biden, Obama and Bush. He seems to support free speech far more, which is the foundation for all other freedoms. He makes his money from the leisure industry, so his interests are aligned with Americans doing well and having disposable income. And he supports decentralization, so liberal states can adopt liberal policies, and so forth.

It seems people forget about the insane infringements of civil rights through the Patriot Act, NDAA, mass surveillance, lockdowns, firing people over vaccine mandates, etc. A poll showed about half of Democrats supported putting Americans into camps if they didn't take the vaccine, and a third supported seizing custody of their children. Democrats supported mass censorship and state control over media, which is far more authoritarian and fascist than anything the Republicans were doing.