> I'd say the answer to that should be determined by the hospital capacity. If a region has sufficient hospital capacity that it would not be overwhelmed by the increase in COVID cases among the unvaccinated go ahead and lift most restrictions.

You forget the second order effect here: the more unvaccinated people hospitals have to treat, the more likely their nurses and doctors are to quit, even if "the hospital is not overloaded". The more likely they are to quit, the more likely people are to die of other preventable causes in the future (because once they're burned and quit, they're not coming back).