You can argue about policy and regulation all day, and it's certainly a factor, but there are two gigantic elephants that have to be considered.
1. China is 1 Billion people larger than the US (in roughly the same land mass). You can't discuss any sort of number without normalizing those numbers for population. The fact is the US will never again touch China for production capacity unless or until there is some sort of major economic shift or collapse. They are just too massive, and have huge capacity for earning and production as long as they can maintain supply chains and resources.
2. China is massively denser, which means infrastructure implementation is going to be more efficient. China's 50 largest cities are all well over 2 million people (The biggest is 30M), while the US only has 5 cities over 2 million and even NY is only 8M. Building charging infrastructure alone is going to see far better utilization than anywhere else. Here in Canada for example, we accept that road infrastructure is always going to be more costly per capita than much of the world as we have a tiny population vs our land mass and distances we need to support.
Now the fact that China is operating at 50 year old US levels of regulation and environmental protection are short term factors, but that is changing. You can't use that as an excuse anymore. The US simply needs to accept that they need to measure their success in relative terms. Even is the US rolled back it's EPA initiatives to post-war levels, they still can't catch the giant tiger. They just don't have the domestic capacity anymore, and the worlds tolerance for colonial action is shrinking by the year.