> Nvidia or Intel could certainly make a console focused SoC at least as performant as AMD.
They certainly cannot, or they would have. Do you think that Sony and Microsoft stay with AMD because they like them or because AMD can deliver what they want?
> There are only two high performance consoles on the market
I'd throw the Steam Deck on that list too. High performance for its size more than high performance in general, but still. It's no coincidence that all the gaming handheld consoles, full blown consoles, and lots of gaming devices in general all use AMD.