A few remarks, from the point of view of someone who is neither an "outsider" nor an "insider".
It's so naive to compare EU to USA. It's probably not surprising, but most EU residents aren't very familiar with how the USA works, and most USA residents aren't very familiar with how the EU works. For better or for worse, you can't very meaningfully directly compare EU's policymaking and decisionmaking with respect to its countries, to USA's policymaking and decisionmaking with respect to its states.
Perhaps, unless you lived for many years or decades in both, you may not be able to realize this.
But to anyone who traveled and lived extensively in both, there's quite obviously no way to make direct comparisons hold in a very meaningful way. It's perhaps less meaningless to compare the USA to an individual country within the EU, just like you may compare the USA for example to Canada or Mexico - they're also countries, after all.
In any case, if you really want to compare the USA with the EU, with respect to this pandemic, let's:
(just a few random comparisons here)
1) the EU was late in coming up with a common policy, but they did, eventually. Many EU policies were also preceded by individual EU countries' measures, such as actual complete lockdowns. Not pseudo-lockdown measures as witnessed in most of the USA territory, where everyone pretty much kept moving about without much fuss - of course excepting a few places such as NYC, etc.
The USA government and legislation, in a country that is a federal union of states (which the EU isn't) did what, exactly, other than spending tons of federal funds, in good part to save corporations?
3) When USA residents pay their taxes, do you realize how much of those taxes are federal taxes, compared to the portion of EU residents' taxes that end up in EU-wide taxation and use of such EU-based taxes? The sheer power of USA federal funds is quite obvious at the military level. Not so much about using federal funds to protect some other human rights within the USA - such as the right to health, and this obviously shows, especially this year. If it were a democracy, USA citizens could perhaps decide about it - but perhaps they don't care about their health as much as they care about their guns. This also shows, in many comments throughout slashdot. Not so much in EU-based equivalents to slashdot. Few other people around the world seem to be as obsessed about guns as people are in the USA, especially among so-called "industrialized countries".
4) I'd have a hard time imagining any state within the USA enforcing entry/exit at its borders with other USA states, in the same way that EU countries can (and did, during lockdown) quite strictly enforce entry/exit at their borders with other EU countries.
" And so the problem remained, and lots of the people were mean, and most of them were miserable, even the ones with digital watches. "
The lifespan of most species is, or rather was, before humans showed up, in the millions of years (unless you are a creationist, of course). Doesn't look as promising for your current dominant species though.
Good luck in your respective countries.