73.9% of H1B visas are given to Indians, 79.2% of those Indians are males.
The solution is to require at least 50% of all H1B recipients, from all countries, to be female.
High levels of Indian and Chinese migration also produce secondary effects, as families from those communities still carry out sex-selective abortion even into the 2nd and 3rd generations: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6133054/