Yeah, true that.
BUT...
what do you consider to happen if bitcoin would switch to PoS one day?
It's not impossible, there's that. Even if would become relevant through future BIPs, what would you think would change implicitly?
OG's leaving? Institutions going all-in? Big miners wrecking it all for the profits? Satoshi coming out like Superman?
This is not a rethoric question (my example answers are rethoric, though). I really asked for your opinion.
Don't get me wrong, i'm not in favor of PoS, this model is just a No-Go for the sake of Bitcoin's "soul" (an analogy), but i can see the point(s) of such a change, which are on top of "good willing" people, but the downsides have to be considered, too, which is most likely not the case with everybody who likes the PoW ideas, they just see their manifests, not much caring about the other possible effects on the system, which are by no means always positive, imho.
But there's always a bad aftertaste with "good will", inherently, i think most of us here know that "good will" (aka. "wanting only the best for something/somebody) is most always not really the best, especially in hindsight.
I know that Bitcoin is not Bitcoin without PoW, even if i didn't explicitly point that out. And that was the expected answer, but i did want to read WatChe's opinion.
Don't get me wrong

#GN
You have a rational question that why bitcoin can't move to PoS?
We all have consent that bitcoin is not switching to PoS but why?
If you see cryptocurrencies on cmc then apart from Bitcoin almost all are centralized, i.e. there is someone who is controlling it. Ethereum was supposed to be next decentralized crypto after Bitcoin but it also shattered that illusion by switching to PoS. Since that tells the story that it's in the hands of few developers. They can do manipulation any time.
The reason why bitcoin is leader is mainly because people have trust that its decentralized and that's mainly because no few people can change its code. To me Bitcoin is very much distributed and its not possible to take control of thousands of nodes that's managing bitcoin and that's why it can't switched to PoS.
For me, there is more chance of snow in Africa then bitcoin switching to PoS (or changing its code).