Well my main point is that plenty of the people who live there are good people. They are not crazy right-wing evangelicals. Every single one of those states has progressive enclaves.

Suggesting you kill millions of people because some or even many of them are bad is, in itself quite morally questionable, but when you take all the people into account that have not done any wrong, including all of the infants, it become unquestionably immoral by almost any standard.