It is precisely bec he did not do this & that he failed so miserably at leadership in a time of crisis that he is so desperately rejected.
He wants the credit, & does what he can to diminish anyone who actually deserves credit to make up for his own lacks. Like a virus he feeds on life he does not, & cannot create.
It is for this unjustifiable arrogance that people don't like him. Which is, I suppose, his personality.