If Optimus fails to impress, and gain traction, I’d seriously expect Tesla to end up a subsidiary of SpaceX within the next ten years as Elon tries to protect up his net worth.
I do think 'self driving' is still their 'moat' when it comes to EVs. I use it every day, and nothing else comes close. But other than that, building EVs is becoming a cut-throat slim-margin business. I don't think that's where Elon, or Tesla employees, want to spend their energy.
The “west” came up with Tesla and Rivian, and their cars are on the road. And the US tariffed chinese EVs. What else can be done to combat China’s lower priced labor and possibly more lax environmental regulations?