Understand the context first instead of believing the simplistic memes pushed by climate change denialists. For example, in India the reason is that there was a shortage of natural gas which became scarce and super expensive because of world events, so they had to build more coal power plants to not have blackouts. Solar is still growing fast, 82% of new capacity in 2022 was solar, and there's a lot more in the pipeline.

https://cleantechnica.com/2023/06/29/solar-82-of-power-capac...

37% of new car sales in China are either full electric or plugin hybrid. 25% are full electric BEVs. The west is far behind.

China is the #1 builder in all renewable (and nuclear too) by a significant margin

You are going to need to also propose a solution beyond "stay poor" for the country.

India is emitting massively under their fair share of the world's CO2 emissions under any sane allocation. So the first thing to do is not vote for policy makers who try to deflect from their country emitting way more than its fair share by bringing up India.

By providing education and awareness, change can only come from within those countries. The citizens of China and India are probably on the same page as you.