I am not sure. Sometimes I think that politicians who allow their cities to degrade into crime and filth do it because they understand that such changes drive a

I am not sure. Sometimes I think that politicians who allow their cities to degrade into crime and filth do it because they understand that such changes drive away those who are most likely to vote against them. As in, chosing to have an electorate strangle hold over a shitty city vs being competitive in a thriving one. I have no evidence of this being a conscious choice other than not being able to find an alternative explanation.