Japan is also completely ethnically homogenous. People don't want to use public transport in many cities in America because the risk of violent and property crime is too high.
I think the solution is a private system of autonomous minibuses, that people can subscribe to and that generates routes automatically.
It would make more sense, and would be cheaper, to focus on expanding those genes rather than spending an inordinate amount of money and effort on trying to force academic frameworks onto people genetically ill-suited for them.
https://www.youtube.com/watch?v=agxSclh27uo&feature=youtu.be