[quinnchr]

This is silly, there are plenty of counterexamples. See Santiago, Chile and Kuala Lumpur, Malaysia for examples of large multi-ethnic cities with efficient, safe, and clean public transportation systems.

This is specious reasoning at best unless you've done an exhaustive study of all public transportation.

[guard-of-terra]

Chile is culturally homogenous isn't it? Ethnic background of its population varies, but they're already all Chileans today.