I guess I'll look into the estimates and see.
One thing I would say is that reductions in supply in one jurisdiction will compound with restrictions in other jurisdictions.
For example NZ banned new oil and gas exploration a while ago but some parties want to repeal it with the same argument as yours, someone else will sell it. But if it happens in NZ, then the US, then ... I think you reach a point where there is a non-trivial challenge to increasing supply. Then these measures will have stronger effects at increasing prices and hence reducing consumption.
If I can compare it to something it would be trying to get a heroin addict (or even serious alcoholic) to stop using. If you succeed in cutting off all supply right away, they die. If you cut off supply locally, they will get it somewhere else where you can't help them get rehabilitated. Half measures are almost always worse than not doing anything.
I for example, almost never drive but at the same time I will not get EVs unless you force me because they are unreliable for long distance, I hate queues (for charging stations) and living in apartments means either they get dozens of chargers for the complex or I have to drive somewhere and wait like an hour to charge (if I can make it to the station). So you really have to twist my arm to get anything short of a hybrid.
That said, I am only responding to your question I don't support or oppose oil subsidies since I am not informed enough on the subject