From what I'm reading, the requirement of vaccinated people wearing masks indoors is not based on data showing that vaccinated persons are getting sick or spreading the virus. It's because unvaccinated people are not wearing masks and there is currently no way to distinguish vaccinated from unvaccinated. So everyone is subject to the mandate.
This is clearly a problem, but one of a different nature and in need of a different solution. A number of posters have speculated throughout this thread that if not enough people get vaccinated to solve the problem, it is going to become necessary to take a serious look at vaccine passports - regardless of how unpopular they may be with some segments of the population. Even DeSantis, in his EO, reasoned that we didn't need passports because a good number of people were getting vaccinated at that time. If that's changed, then the solutions have to change. The people who did the right thing by getting vaccinated are not going to stand for being treated the same as those who did not simply because no one can tell the difference.
100%.
Get vaccinated or get denied entry. End of story.