I'm not saying all, but MOST leftists realize, to a varying degree, that high numbers can be utilized to attack the president regardless of how irrational the logic behind the charge and argument is.
Especially with the MSM on board.
Bombard the populace with simplistic, misleading, untruthful activist headlines. Poof, it becomes "truth". It was Trump's fault, Trump didn't act fast enough, the Democrats were wanting a quarantine early... all common narratives that are being recited despite being entirely false when expressed in broad generalizations.