I and others have said in this thread we don't know the full extent of the disaster. But the way you frame it as "we don't know how bad things are" is completely asinine. It would be like saying a year ago we didn't know how bad it was in NYC metro, because the testing infrastructure and data were woefully incomplete. But did we have evidence that it was really bad?
Nobody is feeling superior about anything; we are saying the world is seeing a health crisis unfold in India, it will get a lot worse before it gets better and hopefully wealthy countries like the U.S. will help in any ways that we can. Nobody else here is talking about what the final misery tally will be in a year or two, just you.
You fail to understand the factors you mentioned specifically explain why India's cases and deaths are so undercounted, even if we don't know the exact multiples. Compared to the U.S., they have a poor public health infrastructure and dense urban population centers. Most of our seniors, the most vulnerable to severe Covid-19, have already been inoculated and thus our trend line is favorable and we have a pathway to normality down the road.
We can all agree that nobody knows the true scale of the problem in India, but then you choose to float out there that their official numbers are only a "little worse" than ours. Who the fuck cares when that's comparing apples and oranges? The media isn't reporting this to denigrate India; it's reporting it to explain the scope of the ongoing crisis. Also note that less reported now is that region-wide, South America is in nearly as much pain as South Asia is. It's mid-autumn in the southern hemisphere, and I don't know if that's a factor.