Trump is the one who declared an emergency, seized all sorts of powers (probably in violation of the Constitution, since if the Constitution doesn’t assign a job to the president, it goes to the Congress or states). Trump was like any other politician grabbing power (and unlike the Conservative wing of the Republican party, saw nothing wrong with increasing executive power at everyone else’s expense).
Based on death rate changes, age distribution of deaths and people seriously ill, Covid19 was not significantly worse than the “seasonal flu” in a bad year, and bore no resemblance to past pandemics that were the basis for the extreme measures the government introduced (closing schools and politically unfavored businesses, mandatory masks, disrupting transit, confiscation of private property without compensation) – compare Covid19 to Ebola, Polio, Spanish flu, Smallpox, Plague, to get some context. The analogy would be someone who went to a Yiddle League game and thought that was baseball played at its highest level.