Hiring H-1B visa workers below prevailing wage is illegal under US law.
WHERE IS LAW ENFORCEMENT?
https://www.kalw.org/post/oakland-tech-centers-give-locals-shot-jobs-industry
“Silicon Valley has arrived in the Town. And some Oakland residents want in on jobs. But tech companies continue to take advantage of the H-1B visa program to hire foreign contractors with specialized skills, for cheaper pay. Although the Trump administration has issued more denials of H-1B visas than in the last 10 years, it hasn’t hurt big companies like Google and Facebook. This isn’t stopping some East Oakland residents from competing for new opportunities in their own backyards”.