I tend to agree with you that Israel, as a country of its size and kind of neighbors its surrounded with, is not placed very pleasantly. But it is a country far more homogeneous than India in all the respects that make a nation ( religious, social, demographically and economy wise ).

As GP pointed out that India has the potential to self-implode given the inequality and poverty that has been bred for a long time ( hundreds of years ) by various rulers of the land.

The self destruction reaction might just fasten up if a catalyst is provided by anyone of the hostile neighbors.

Israel is very far from being homogeneous. It's made up of people who immigrated there from all over Europe and the Middle East. There is a big cultural divide between the people from European backgrounds and people from Middle Eastern backgrounds. It also has a significant Muslim population (17%).

Not sure about your overall points but Israel is far from homogenous with a large part of the country literally controlled by another government (Palestine).

Israel's neighbors don't have nukes. In India's case, on one side you have a known sponsor of terror(where Osama was found) and on another side we have One Party Communist China. And the fact that they both are partnering isn't helping.