There’s literally no way the nation of India is more diverse than the United States- we have the biggest spread of racial, and religious diversity on the planet, by far.
We're taking about a country with ~4x the population of the US where no single language has the majority of native speakers (the closest is Hindi at 26% [0]). 12 different languages are spoken natively by >1% of the population. India has diversity that someone born in the US can't even begin to comprehend.
I think it's hard for Westerners to understand because we view diversity through such a skin color and organized religion lens. 'Everyone' in India is dark-skinned and most are Hindu, so that means they're not diverse, right?
The trouble is that that's a very Western perspective on both ethnicity and on religion, one that doesn't carry over at all.
[0] https://en.m.wikipedia.org/wiki/List_of_languages_by_number_...
gender
age
white college, white non-college, Black, Latino/Hispanic, Asian
party registration
For 1000 samples you get the standard MoE of 3ish percent.
In India you start by dividing up the electorate into hundreds of strata, sample independently from each stratum, then piece it together. This results in Indian polling sample sizes being over 100k for the same 3% MoE.
This is pretty objective evidence of India's diversity.
(I am curious though if 2024 is going to cause pollsters to re-examine polling basics in the US. There are several major warning signs this year that polling is broken, even if it produces the right result in the end.)