Because Gavin Newsom is not on our side, he is a useful villain/punching bag for the right. That is his role, he pretends to be on our side so he can create the media moments for conservatives to clip when they dunk on him while he simultaneously fucks over Californians for power and profit. Gavin Newsom is perfectly groomed to be the most insufferable and ineffectual Californian liberal politician possible, that is the point.
How well this works on liberals is terrifying but unsurprising.
Gavin Newsom is NOT on our side, please get this through your head, he is your enemies best friend.