This is the great danger of having a single person making all the decisions for everybody; decision-making has to be more spread out. The initial decision worked; but then assuming it always would and not going out and getting better vaccines for narcissistic reasons, that's going to greatly increase the death toll.

Nothing in Marx insists on dictatorship by one person. The (Marxist term) "dictatorship of the bourgeoisie" did not refer to tyranny by one person, so it's absurd to hold that the "dictatorship of the proletariate" implies this, or can even tolerate it.

Own goal.

Yes there's a standing committee of the politburo, but we're back to Mao-like dominance over it and all other power centers.