With the amount of additional non-gaming utility with Nvidia cards and the way it all "just works" you are effectively getting a suite of products with team green's offering. If you're the average Windows user, AMD (for now at least) are only really offering you one function: gaming... It's a little bit like the difference between buying a PC and a console: even if the gaming experience was similar, I'd always expect to pay more for the PC because of everything else it can do.
I don't follow your logic here dude... you say "average Windows user" and then say "additional non-gaming utility".
What utility is this?
"Average windows user" uses MS Office, browses the web, listens to music, does some light photo editing, and maybe dabbles in some gaming. Where do CUDA and other differentiated features from NV fit into this?
I would consider myself an "above average" Windows user, and I don't have any use for it... when I game, I want raw raster with high IQ, high fps, and stability. With that criteria, the experience between the two at any given tier of card for the past several generations has been indistinguishable. The comparison to consoles is pretty comical

Does this sound crazy to anyone else?
Yes!
Whilst the Steam survey data is an interesting data point, it has been shown to have huge swings in its findings due to the random nature of the sampling.
TBH, I don't understand why Steam doesn't have it in their T&Cs that they can just auto-collect hardware data from users... it'd be an incredible data set.
You literally mention the "Average" gamer.... the "Average" gamer doesn't care about 90% of this software outside of DLSS and FSR they don't turn this stuff on unless it's on by default I'm a game.
I agree, all these bells and whistles only bother folk like us who are sat here debating. I would argue "average gamer" doesn't even really grasp things like DLSS/FSR...
"Average gamer" is the guy who boots up a new game and doesn't even bother entering the settings menu before playing... and Nvidia smashes it with the marketing, game sponsorship and headline press coverage, so they will always be top of mind for folks that just want to get on with having fun!
If you think Nvidia GPU's are too expensive take it up with them, its not AMD's job to get in to a price war with Nvidia on your behalf, its AMD's job to make as much money as they can from their products, just as it is Nvidia's...
Yes, 100%.