Chinese cities are very very dense, and very new due to urban redevelopment projects in the 2000s-2021. For example, the urban core of Shanghai is around 20 miles end-to-end, so the same size as Wichita end-to-end, yet has a population of around 20mil compared to 350k.
This helps sustain both public transit as well as EVs with minimal range anxiety.
The industrial policy aspect of EVs also helps ofc, but big picture it works with the range and size of Chinese metropolitan areas.
The issue is the sprawl factor simply can't be solved in a country as spread out as the US, so long range batteries (looking at you Idemetsu Kosan and Toyota) or hybrids are the best solution in a sprawly semi-urban environment.
And there are lots of factors that reduce the range - hilly or mountainous terrain, aircon/heating, number of passengers or load, and driving style.
Longer range also improves security since people don't necessarily have to stop in places where they feel unsafe.
A fast charging solution massively improves things for EV though - gleaning from TA, the battery packs of Chinese EVs seem to be exchanged at charging stations.