Who is more or less of an asshole is a subjective question.

Theres no question that the Chinese are assholes, but are they moreso than the US?

In the last few years the US has not only abandoned any semblance of a response to climate change, but they've doubled down on open hostility to renewable projects. As a global leader, this provides cover to every other country who can point to the US as a wealthy greenhouse gas emitter and say "what's the point of us reducing our emissions when the US is actively increasing theirs?"

Would you like to talk about how much harm this will cause in the coming decades? What is the death toll likely to be, and how many people are going to be subjected to poverty and displaced due to famine?

The other salient issue is the current energy instability due to Trump's belligerence with Iran. In the US it might just cost more to fill up your car with fuel. Theres a lot of regions in south East asia, where most fuel from the strait of Hormuz goes, that are enduring completely unnecessary energy crisis right now.

Would you like to talk about how many farms cant afford fertiliser because of US arrogance and what the impact of that might be in the coming months? Or perhaps what it might be line to have a small restaurant who simply can not buy LPG due to shortages?

Finally, with the US breathless support of Israel theres no moral high-sounding to be had by pointing to China's human rights abuses.

Growing up in Australia in the 90s the US was always "bigger and better", now you're just assholes.

How many millions died in the Middle East because of the US in the last fifty years? And how many Falun Gong and Uighurs and Tibetans died because of China in the same time?

Compare those numbers, mate. You may be surprised.

No one cares about your whataboutism.