Different waves of immigration also makes a huge difference. I’m part of the wave of people from the subcontinent who came here from 1970-1995, largely before H1B was created. Most Indians I knew growing up were doctors or business owners who moved to southern states. Like most Asians until 2000, they voted Republican. Indians who came to Silicon Valley or NYC after 2000, by contrast, are a very different group who assimilated into a different domestic culture and had a different experience.