First: I'm not blaming US workers for being unreasonably expensive. But those higher wage levels are not just affecting a products core-labor working at the as

First: I'm not blaming US workers for being unreasonably expensive. But those higher wage levels are not just affecting a products core-labor working at the assembly line-- you'll have project managers, sales, purchasing, contractors, even the construction workers building your factories: All of them are affected by this (and those people exist in China, too!). I would assume that the total sales price of a bus contains a larger fraction proportional with hourly wages than you might expect at first glance.