As to the second point - this is where I have to imagine that your professed ignorance is trolling rather than naivete. The entire trajectory of the second Trump admin has been to claim authoritarian power to the executive that no president has ever claimed before. He has, among other things, claimed the right to unilaterally end birthright citizenship, blown up a ship in international waters with no authority other than his own, declared that he may almost any government employees (including those over which he statutorily does not have authority) without justification, clamed the right to deploy the national guard in states to perform policing work, claimed the right to compel states to change their policies for running elections (contrary to what the constitution says), extorted concessions from private universities by unilaterally withholding research money that was already promised, and extorted and threatened to prosecute private law firms and lawyers for nothing more than being or representing his political opponents. I know you know about all of that, and about all of the many other examples I have named. These are all pretty obviously authoritarian things - done at the sole authority and behest of Trump, that he claims to have without restraint from any other branch of the government.
Honestly, do you even know what "authoritarianism" means?