Well, I actually do care about people. So, there's that.

"In 1998, over 75% of the total area of the country was flooded, including half of the capital city Dhaka. ... 30 million people were made homeless and the death toll reached over a thousand."

That's sad, all right. How many routinely died in famines before the advent of modern, high-energy, mechanized agriculture?

Hint: a lot more than a thousand.

https://en.wikipedia.org/wiki/Great_Bengal_famine_of_1770

Try ten million. And that was just one such event. They were routine in the days before mechanized agriculture and mechanized food transport. Happened all the time. Note that the article tries to blame this on the British (and they do appear to have been rather callous), but the primary cause was the failure of the monsoon. Nowadays if a monsoon fails you can truck in food from somewhere else. You can't do that without fossil fuels or some equivalent. Not to any real degree.

"It makes me suspect that you don't care about human costs at all. "

I'm not the one who wants to sentence the bulk of the human race to a preindustrial scenario involving periodic mass starvation. So, no.