I have no love for Newsom and he's clearly going to be the Hillary Clinton of 2028 or die trying. But it's true that the only thing that works against fascists, short of physical resistance, is relentless, biting derision and mockery. So his social media manager is doing society a service here.
I'm worried, we're all worried, and that worry makes Trump stronger. Because worry + inaction = normalization, and normalization + time = radicalization . Mockery does something subtle to break this cycle: it's not just cathartic, it normalizes a contrary reality, namely that Trump and his lackey are clowns, and in doing so implicitly reassures us that our reality and expectations remain valid. That in turn slows down normalization. The other response - hopelessness (which I've reacted with plenty of, I admit) - speeds it up. Trump, an instinctive savant at exploiting people, knows it lessens his power and that's why it infuriates him.
So if we're not pouring into the streets, then mockery is one of the only ways to resist normalization and break that cycle.