What I keep explaining to you here is that silicon is not inevitable, and that it's obviously possible to make other substrates work and bring costs down. I've also explained to you why it makes no business sense for companies already invested in silicon to do that. The reason China has a big incentive is because they don't currently have the ability to make top end chips. So, they can do moonshot projects at state level, and if one of them succeeds then they can leapfrog a whole generation of tech that way.
You just keep repeating that silicon is the best material for the job without substantiating that in any way. Your whole argument is tautological, amounting to saying that silicon is widely used and therefore it's the best fit.