You're citing biased samples, like how on HN itself:
- A disproportionate number of direct-replies to almost any opiniated submission are negative. (If you agree, an upvote is often enough! It's the objectors/nitpickers who are loudest in the comments – even if unrepresentative.)
- Often, also, it's sullen/underemployed people who have the most time to comment.
I disagree that the "mainstream reporting" represents "the people who need convincing". They're more of a neurotic clique than ever before. It's time to go around them, to folks doing real work.
Your arguments are still a bunch of impressionistic handwaving about appearances rather than substance: "I would bet this has pushed far, far more people away from techno-optimist than towards it."
Your emphatic belief about superficial "eww!" reactions from within your info-bubble is not much of an argument, nor does it engage with the actual ideas in the text.
For the 'manifesto' to work, it doesn't have to convince anyone who's already predisposed toward grumbling about Andreesen's tone or self-awareness, or who's fond of vague derogatory phrases like "truly off the rails".
It just has to reach the totally-separate set of people who are excited by, & eager to collaborate around, the positive vision within the text itself.
You know, those thousands of actual words written – against which you've only lodged abstract complaints about tone & emphasis, & that he didn't do enough to convince you, & the total cop-out-on-substance "but as far as I can tell most people agree with me!"