It's worth questioning why most people living in urban areas lean and vote more liberal than the rest of the country. Those areas also tend to make (and thus contribute) more money on average, too.
Alright, so tax volume is an accurate measure for who is a more worthy voter, but not how many urbanites care enough for democracy to even show up to a ballot box?
Multi-generational city rule and less than a third of voters showing up are not even abysmal data points – it's a gotham-style dystopia.
A lot of those cities are in the black belt where the red states they are in actively practice voter suppression, eg by making inner city voters wait in long lines without access to water. You can’t just blame the voters for not showing up when the state you are in is actively against them voting.