It is not my place or yours or the governments to tell people how to spend their money or not.
It IS our place to ensure that companies aren't producing products that kill people.
Thus money doesn't matter here. What matters is whether or not FSD is more dangerous than a human. If it is, it should be prohibited or only used under very monitored conditions. If it is equal or better than a human, IE same or fewer accident / fatalities per mile driven, then Tesla should be allowed to sell it, even if it is imperfect.
In the US we have a free market. Nobody is obligated to pay for FSD or use it. People can vote with their wallet whether they think it's worth the money or not, THAT is what determines if Tesla makes more money or not. It's up to each individual customer to decide if it's worth it. That's their choice not mine or yours.
As I see it, in a free market what Tesla has to prove is that their system doesn't make things worse. If they can, if they can prove they're not making roads more dangerous IE no need to ban it, then it's a matter between them and their customer.