There are plenty of companies on the planet who know how to build solid roads. And I doubt they would refuse to bid on California road projects - including trai

There are plenty of companies on the planet who know how to build solid roads. And I doubt they would refuse to bid on California road projects - including training and importing their own workforce if it came to that. They are used to building through the middle of nowhere. But yeah, it's up to California (for example) to refuse to consider such solutions.