Also while most people around the world can transition to green card from H1B, there is limit of 7% per national origin. Since India and China are large countri

Also while most people around the world can transition to green card from H1B, there is limit of 7% per national origin. Since India and China are large countries, their citizens often have to wait longer than anyone else in the national origin queue. This has resulted into huge queue for Indian citizens. Any Indian who applies for employment based green card has to wait around 150 years to get his/her green card. Until then they have to keep renewing their H1B and subject to constantly changing laws. It is estimated that there are around 300K-500K Indians stuck in the backlog many of whom are in country for more than 10 years. A lot of H1B rule changes by current admin are done specifically to target these individuals.