O type Visas have no quota [0]. This is what the H1B are represented as though in practice suppress wages[1][2]. This issue is decades in the making and companies exploiting these programs earned their scrutiny. Especially when there's massive unemployment companies importing labor under these auspices need to be called out.

[0] https://www.uscis.gov/working-united-states/temporary-worker... [1] https://www.wsj.com/articles/a-new-look-at-the-h-1b-visa-pro... [2] https://www.sciencemag.org/careers/2015/05/economists-h-1b-v...