A major reason countries like the USA and the UK flourish is stability. Stability is not something india has and that is a very difficult thing to put a price on. Indian capital markets are not transparent though that is less of an issue for startups. What should be telling is the number of "Indian" startups that are registered in places like Singapore.
I have to rain on your parade but there are many aspects of life in India that money cannot solve. I am no fan of the USA either but the "gun culture" thing is a strawman that doesn't affect daily life in the cities. It is certainly a problem but not a problem that many make it out to be. Be careful with the healthcare argument too. India's legal and police systems are a joke and their healthcare system is cheap but kills millions every year due to medical negligence. The US healthcare system - for all its flaws - has some of the best outcomes provided you have enough money to access it.