That doesn't really go any way towards explaining why Canada, Europe or the Oceania[1] democracies have done so well in the crisis - nor does it explain how Brazil has done so poorly.
I think there is more counter evidence then supporting evidence for authoritarian governments being necessary for dealing with pandemics.
1. Please note - comparatively well, Canada, Europe & Oceania aren't doing perfect they're just doing significantly better than the states.
UK, Sweden, Italy, Spain, and Belgium all have had more COVID-19 deaths per capita than the US. And France has a rate nearly equal to the US.
UK, Sweden, Italy, Spain, Belgium, France, and Netherlands all have worse case fatality rates than the US. And so does Canada. (But, this may be because the US has done more testing.)
Also, authoritarian governments often lie to protect their "authority". Their "authority" is based upon this illusion of infallibility, which goes against democratic principles like openness.
The United States has done poorly because we are a country whose population hates each other. It’s a country comprised entirely of people whose ancestors said, “You know what? I hate you so much that I’d rather cross an ocean, face bears, wolves, and the elements than to spend another day with you.” That’s why we won’t wear masks.
I mean - Canada is in the same boat right? Canada might even be worse off since the country was originally french and then that entire population (along with first nations & Metis which are a more significant portion of the population up here) was second-classed when the English won a war that one time. Quebec secessionist is far more serious than any state in the US[1] and western Canada tends to begrudge the arbitrary french bilingualism while wondering why Mandarin or Punjabi isn't the other official language.
All that said - Canada is still a country that identifies as a country. If anything is causing a real divide in America it's the entirely manufactured hatred of modern divisive politics. As someone who grew up in Boston I went to school with a wide array of skin tones and original nationalities - there weren't Irish and Italian gangs beating up the black kids - there were suburban entitled white-kid gangs beating up the black kids... Any sort of origin based racism left in America is from more recent immigrants - it's totally bullshit and needs to stop - but I've never met anyone in America that said "Hey - you look Prussian - I don't like Prussians since they moved in on my Pomeranian ancestors. I don't take kindly to you folk."
I am uncertain where you've observed it, but I certainly never saw it in either New England nor the south west.
1. That isn't to say they're leaving tomorrow, there is just actually a serious portion of the population unlike all of the US states.
I have occasionally observed anti-Polish racism in the US. Perpetrated by generically “white” Americans against anyone with a Polish last name or Polish accent.
I think there is more counter evidence then supporting evidence for authoritarian governments being necessary for dealing with pandemics.
1. Please note - comparatively well, Canada, Europe & Oceania aren't doing perfect they're just doing significantly better than the states.