Not sure if you think you're agreeing with me, but you aren't.
The USA is the traditional leader in greenhouse gas emissions. China is new to the trophy. We (the US) also pioneered Tetraethylead which is still killing people worldwide in use; and generally speaking there are more of us that have been doing this whole car thing, and for a longer period of time. We started this fire with a possible co-conspirator in Germany.
China and India have mass-transit, they are not as car centric as we are, and it's not part of their economies at large as of yet. But should we take a backseat because they should lead the charge? I think not. I'd rather be at the helm than be in the trunk, personally. Especially when the other nations involved DWARF us in number of people.
As to the notion this only benefits the Chinese, you really need to get out more. If you haven't driven an electrified or full-electric vehicle, I will simply say you need to. There are major benefits to the tech outside of the endless talking points of 0-60 and we've just begun to scratch the surface of what this kind of modularity unlocks, and what potentials have yet to be realized.
Yes, it's going to take a lot of people a lot of work to get us to where we need to be in terms of infrastructure, and consumer acceptance.
But, as to whether or not we should if others don't; this is America.
We are supposed to be leaders by example, not whinging isolationists stuck in the past. Hell, even Ronny Raygun talked of the US as needing to be a beacon to the other countries of the world. This is a similar moment. If we want more power, cleaner air, better acceleration, and whatever comes next we have to meet the challenge. And that doesn't mean you have to give up your V8 classic either.
This isn't a conspiracy, this isn't a political agenda, this is progress. And as the saying goes for corporations both big and small: Adapt or die.
