Many great points already made by others, and much more articulately than i can.
One reason in my opinion is probably that many technical people realize how bad the tech actually is, i.e. why would anyone use something as inefficient as a blockchain, so they don't make the effort to realize why, unlike for shitcoins, this is the actual compromise bitcoin HAS TO make to get its unique properties. It always gets us back to the observation that Bitcoin suffers mostly from the image created by the cesspool of shitcoins pretending to be decentralized while obviously they are not.