When giant SUVs are only accessible to the rich anyways, then the whole premise of tripling parking fees is meaningless to begin with.
Driving your car seems free because you've already paid for it yesterday at the pump. Expensive parking puts a real, visible price on driving that you have to confront every single day.
The rich doesn't solely consist of Jeff Bezos and co. Most people who drive luxury SUVs cannot afford tripled parking prices in the city every day. And even if they could, this forces them to reconsider their habits and maybe take the train next time.
And yes, I'm against the idea of trying to solve the problem using a tax because it's a performative measure that accomplishes nothing of real value while distracting from real solutions.
This is not a performative measure, this is the real solution. Driving needs to become multiple times more expensive, and a tripled parking price is a good place to start. Drivers are heavily subsidized by society and this subsidy needs to end, and these taxes are the first step in that direction.
I believe this accomplishes about as much as carbon taxes.