Nice load of rubbish there Jacky.
Console ports are always appallingly coded to start with, so it's hardly an accurate representation of how much GPU horsepower "we need". We don't need GPU horsepower, we need game devs to actually give two ***** about their product, actually code the thing properly for all platforms they intend to release on and generally do a proper job. Oh wait, PC gaming is a niche market and all the money to be made is in consoles, so the PC Master Race is never gonna get a fair deal.
Plus, I'm pretty sure the 99.999% of PC gamers are perfectly happy playing RDR2 at 1080p on their RX 570s and GTX 1060s, y'know where it's affordable and sensible. Nobody cares about 4K 60fps at ultra settings. It's a niche within a niche within a niche and there is no money to be made from it, so no vendor bothers to actually make anything for it, or push the envelope.
AMD certainly don't care about the flagship ultra high-end because their money is better spent crushing the market sectors that actually see sales, rather than getting into a dick swinging contest with Nvidia over who can produce the best PC gaming card that only 5 idiots will buy (no offense,
@Kaapstad ). And Nvidia don't care about ultra smooth 4K gaming because they can make much more money by convincing their idiot fanbase that real-time reflections on a puddle is worth £1,200 and a 50% performance hit.
I would agree though that AMD aren't beating the 2080 Ti for a while, but that's more likely because of a choice, not a barrier. There is no money to be made from bleeding-edge halo products, so why invest money you don't have into it?