Sorry, gotta disagree as this is the opposite of what needs to be done.
Cities are shit because of the people that voted in the policies and politicians. Well meaning conservatives tried to warm them but they ignored the warning for social asspats.
What needs to be done is to contain the spread. Will their be conservatives and libertarian that are trapped in those hellholes? Yes...as with any battle their is collateral damage.
Perhaps it sounds cruel but we cannot allow the infection to spread. Your position is to allow organ transplants from persons that died of cancer. Sure that specific organ seem clean but the risk is too high. We could allow a brief time for those that we deem conservative to leave but that is it.
The time for prayers and hope is over. It is now double mastectomy time.