The fact that there are way more men than women in the Bay is a statistical reality, which you admit yourself.
Then you bring an opinion blog-post by a single woman as counter-evidence.
Ironically, all these complaints about "guys there that have a disgusting sense of entitlement" just go to show how picky she is, and can afford to be, in San Francisco.
Nothing in GP's post exhibits an arrogant attitude. He makes the simple observation, that the sort of guys who would be considered attractive and desirable in most other locations, are struggling to get dates in the Bay. This is easily explained by the high male/female ratio, which we already established as a fact.
Given this fact, no amount of hand-wringing will help: if there are far more single men then women, then the women would set a very high bar, and the men below that bar would have to remain single.
There are simply not enough women for all the single men in the Bay. No spectacular feats of mental gymnastics, nor nice-sounding dating tips, nor seeking to blame men for being "arrogant", will get around this reality.
As a final anecdote, I did know women who dated executives and VCs in the Bay. Some of these guys had mammoth egos. Curiously, that didn't prevent them from having far better dating lives than any engineer I knew.