Nope. It doesn’t. Correlate your observations with public pension debt. For the past few decades, blue cities have been run as public union vote farms, that is concentrated voter blocks bought with future promises of taxpayer funds. Their GOTV machines are almost impossible for local conservatives of any sort to beat as the GOP talks local governance but rarely has a local campaign structure or interest in funding or building one for local purposes.
US cities are left because local red operatives can’t match the blue ground game.
Veteran of two Houston mayoral runoffs a decade apart, LL