Most of the people who are interested in moving to the US, as expat workers, are mostly from India. Let's break this down piece by piece:
1. Canadians have TN visas, so they prefer to use that since there is no lottery for that and it's a simple process of taking your offer letter and have CBP stamp a 3-year TN visa. Even though it is not dual intent, people can and do apply for green cards on TN status since for Canadians the wait times are current and they can get a green card before they need to renew their TN visa.
2. Australians have E-3, so that is what they will use.
3. The Chinese use H1B's but the numbers have dropped as more Chinese prefer to stay in China or return there after their foreign education since a lot of big Chinese tech companies have sprung up.
4. Europeans either do not want to move to the US, they sometimes don't try to have a prospective employer sponsor for H1b visas since a lot of them seem to believe that Indians have a monopoly on those visas.
You're left with mostly Indians, most of who study STEM subjects in college, overwhelmingly come to the US for studies and then hop on to work visas post-graduation. Most of the highest paying tech employers in India are American companies even then many Indians still want to move to the US since there are still a lot of socio-political and quality of life issues in India.
Take all these points and that's how so many H1B's go to Indians.
1. Canadians have TN visas, so they prefer to use that since there is no lottery for that and it's a simple process of taking your offer letter and have CBP stamp a 3-year TN visa. Even though it is not dual intent, people can and do apply for green cards on TN status since for Canadians the wait times are current and they can get a green card before they need to renew their TN visa.
2. Australians have E-3, so that is what they will use.
3. The Chinese use H1B's but the numbers have dropped as more Chinese prefer to stay in China or return there after their foreign education since a lot of big Chinese tech companies have sprung up.
4. Europeans either do not want to move to the US, they sometimes don't try to have a prospective employer sponsor for H1b visas since a lot of them seem to believe that Indians have a monopoly on those visas.
You're left with mostly Indians, most of who study STEM subjects in college, overwhelmingly come to the US for studies and then hop on to work visas post-graduation. Most of the highest paying tech employers in India are American companies even then many Indians still want to move to the US since there are still a lot of socio-political and quality of life issues in India.
Take all these points and that's how so many H1B's go to Indians.