There are a fair number of Vietnamese doing residential construction work. Same for Koreans. There are a LOT of Polynesian people doing construction. They ar

There are a fair number of Vietnamese doing residential construction work. Same for Koreans. There are a LOT of Polynesian people doing construction. They aren't numerous in absolute numbers, but something like half the men work in construction. The main thing that pushes people toward construction work is a lack of education, poverty, and a desire for a middle class life. It's hard work, but generally pays well after you're at it a while. But I think there's limited upward mobility for some people, because I notice lots of Asians in residential, but not in commerical, and definitely not in public works projects. The reason why public works construction's heavily white is due to construction unions, who have generally seen their numbers declining. The tendency is for fathers to give their jobs to their sons. That fills the apprentice pipeline, and keeps Black and Asian people out. (A lot of Latinos are in construction and get in unions just by force of numbers.) These are the best construction jobs, and can get you an upper middle class lifestyle. I think the issue of declining jobs or declining union membership tends to cause racist outcomes, even if the people involved aren't racist. Basically, if the overall field is shrinking, the tendency is to avoid hiring. If there are provisions to pass jobs on to their kids, people will do that. The end result is entire fields where the racial composition doesn't change. As for Asian vets versus physicians: the coursework to become a vet is similar, and vet school is very expensive, but the pay isn't that great compared to a physician's pay. Becoming a vet is really a field for people who come from upper middle class families.