How much do you even pay in gas tax, anyhow?
I don't know or care, it supports the roads in proportion to our ICE vehicle usage. I never complain about taxes, no matter how high they are. I normally only complain when I do not like what the revenue is used for.
It is very fair even if you do not use ICE vehicles. You don't pay until the gasoline is used, which means you're most likely driving on the roads. BTW, there is NO road tax when you buy marine gasoline for a boat that can only serve boats while on the water. And it is illegal to put such gasoline in a car. As fair as can be, so far.
But with EVs, I own four. Even if I never use any of them on any road all year, I must pay the road tax since they are going to do it by registration fees. But I really cannot think of a better way for them to do it, so I will not complain there too much

The law doesn't stop them for charging for parking, tho.
Who is "they"? If you mean the company supplying the juice, they will NOT be able to charge by the minute for parking and I doubt "they" can charge for parking at all. But I assume others can, such as if it is in a public parking lot where everybody must pay. But then the parking money is going in a different direction.
If you look at Plugshare in Tucson for Blink charging stations, you will see the charge stations have what is called a "parking fee" which is charged by the minute. But it is so low, (like a penny or two per minute) that nobody cares. But I guess even that will be illegal in CA.
EV-GO (CCS charging) often costs something like sixty cents per minute to charge a slow electric motorcycle, regardless of how little charge you're getting. That is the type of BS CA is trying to stop.
That is much like paying more to fill up this RV at a gas pump, not because I use more gas, but because it takes more time to fill up. And then they can play games by making it pump slower. Well, they DO play these games with CCS charging and that is what CA is putting to an end to. IOW, reduce the charge current, to make you pay MORE!
They charge gasoline by the gallon. Electricity should be sold by the KWH. Neither should cost you for the time to get the job done, especially when they can control how long it takes you to get the job done.
-Don- Yuma, AZ (RV)