To add, this would disincentivize companies from pursuing novel Research and Development. Why would a company invest a lot of money to develop hardware if they will be eventually forced to open it up to some random competitor? If I was a competitor to Apple I would lobby hard to obtain access and not do any R&D of my own.
Right? Why spend money and effort to R&D actually interesting devices if you can just make cheapo compatible slop instead?
Oh no. How did we ever live without companies spending money and effort between the invention of computers and now.
We didn't. There has been constant innovation from then up until now.
Indeed. Yet you claim that opening platforms somehow prevents companies from investing in R&D