Bear in mind that China has like, no oil[0] or gas[1] at all. Their investments into renewables is kind of a life of death situation, not just for the world, but the PLA specifically, who would likely monopolize domestic oil production in any military engagement.
Also worth mentioning that Beijing sits on one side of a mountain range, and the other side is arid desert. It's kind of a no brainer to drop solar panels there and tramsmit power to the nearby megatropolis.
> Of course a boom in solar PV installation in the USA would pull the rug out from under natural gas prices
Fracking already did this[2]. And solar doesn't make sense in many places in the US. You want somewhere dry and bright, which cuts off the pacific northwest, and most of the north*. You also want to supplement solar with something that will cool off your home in the evening, run your oven, and keep you warm at night. Which natural gas can actually do[3], so even proponents of solar should consider them at least temporary allies.
In contrast, wind seems to already be making 10 percent of the US demand[4], versus solars 2 percent. This is where the subsidies are going, and given how much reliable wind there is in tornado alley, will likely continue growing once subsidies expire. In the mean time, we can continue to import subsidized solar from china and focus on higher margin silicon applications. ^_^
[0]: https://oec.world/en/profile/bilateral-product/crude-petroleum/reporter/chn
[1]: https://oec.world/en/profile/bilateral-product/natural-gas-liquefied/reporter/chn
[2]: https://www.eia.gov/dnav/ng/hist/rngwhhdm.htm
[3]: https://en.wikipedia.org/wiki/Peaking_power_plant
[4]: https://en.wikipedia.org/wiki/Wind_power_in_the_United_States
*except for the southern half of Minnesota, apparently