A great President ideally should have an omnicient understanding of all processes and contingencies involved in each possible outcome of policies involved. Then implement the best policy that maximizes the most benefits and minimizes the risks. This leaves the posssibility that the best choice will still leave one open to criticism that the President is a total wanker. A more temperate opinion might be 'Biden is a partial wanker'.

On the other side of the equation is WHO are the ones critisizing?
The people alive now that come from America and elsewhere are the middle classes that came form the parents and children of those who were victorious in WWII. The middle class who were armed with a GI bill and were less hungry than those in the depression. Their rage comes from cultural insecurity, tribal party alliances, obcessions with ethnicty and identity, blunted with ambition and a childlike understanding of the process and limits of government. It is easier to share a hatred than a love among political strangers. It is easy to believe/understand an emotional dynamic lie than a subtle truth.

Many of us a have what we want but are still unhappy we don't have more. They cry and wallow in victimhood and greivence and tribalism.
Then they refuse a simple vaccine because the great orange Cheeto had a another idea.