Taking a bit more money from the ultra wealthy is not going to stop Tesla and SpaceX. That's just ridiculous. Particularly for those two who only exist due to government subsidies.
If government subsidies are the only reason Tesla exists, why did Aptera (v1) and Fisker fail? If SpaceX only exists because of government subsidies, why are Boeing and Lockheed Martin (owners of ULA) worth so much less than SpaceX?
This is how taxes work. I'm not sure why you jumped from one extreme of the US to the other extreme of Cambodia, ignoring the quite normal end successful middle.