IF he keeps up being feisty AND people start really dying (Unlikely hopefully),
People are already dying. Trump simply rejects responsibility for the botched response to this crisis.
But since he is the president and this is a crisis affecting the entire country, the famous buck stops right at his desk. No one else to blame.
I don't know how Trump could possibly be right here.
A pandemic is the very definition of a problem that requires collective action and preparedness, in this case, is just as much a federal obligation as it is a state-one.
On the one side, his administration fucked up the response to this crisis so far and he doesn't want to admit that.
On the other side, he is flipping out over states claiming that he doesn't have a say in when they open back up.
At the end of the day, there will be several metrics of comparison between countries. Infection numbers, death tolls and economic fall-out mainly. They will tell a clear story about how well the respective administrations handled the problem.
Maybe some Trump voters will believe him when he pulls out some scapegoat and rejects any responsibility, but the world will know that this disaster in the US is on him.
There are many federally organized countries in the world. I don't know about a single one other than the US where the federal government rejected responsibility while at the same time trying to tell states what to do and make demands.
Whatever pandemic response plan was in place, they scratched it and now make it up as they go and the result is terrible.