Reverse that, why don't other countries / companies try and steal their talent and IP? Is everyone resigned to think that China are undefeatable on the technology/manufacturing of these batteries?
It's not insurmountable for 'the West' to claw back some of that manufacturing, including high-tech items like batteries. It will take a large, long-time and very expensive effort, however. But talk is cheap, and largely 'the West' has drunken the neoliberalism kool-aid and is staring at quarterly shareholder value so little gets done.
Heck, some Western government are even in bed with the fossil fuel industry, desperately trying to hold back progress in order to claw a bit more profit out of the industry before the full force of the electric revolution hits.
The west is mostly drunk on populism, nativism and boomer welfare. If it were the neoliberal hellscape you imagine, it'd at least be competitive.
The thing is, 996 works in China because China is a dictatorship where workers have no rights and for a lot of them 996 is better than the utter poverty they came from.
But we? We cannot compete with 996, not if we don't devolve to outright slavery, to conditions of the 1800s.