I see it the other way around. Musk's success and impact are of of truly historic proportions, and his being in California helped lift its credibility and reputation. It's sad for California to lose him (and the loss of his businesses to the extent that will happen).

It's odd to me to be so aligned with the State to claim it is responsible for one's success, without accounting for the jobs he created, and the related industries he energized. California benefits from people like Musk. As more companies and thought leaders leave (as they should given the direction of CA's policies), the state will suffer.