He acts like a villain.

He talks about his company's business in inhumane terms - Karp seems to me to enjoy piercing what is a longstanding euphemism of "for national security purposes" used by nation-states and security contractors, by employing what has become his signature (paraphrasing) rhetoric of, ".. and through using our products this can have the outcome of killing of certain specific people". That seems like a deliberate rhetorical choice rather than anything to do with, "the spectrum."

SO, I disagree about "the spectrum".

EDIT: And to be clear about MY opinion ... "villain" => "evil" => "dividing humanity" => "inhumane" => "post-human hellscape" / "humans for anti-human behavior" / "philosophy of capitalizing upon destruction"

Mate, read his quotes or watch on youtube. There is no reason for you to use that as a scapegoat, when there is clearly obvious reasons some may not like him.

You and many of your repliers are framing this as a “like” thing: it’s not.

The key question is “can you trust this guy?” and he is so clearly not trustable it’s amazing.

Makes them look like the FTX of data processing.

It is his opinions and political goals. Not because he is maybe possibly on spectrum, which is something that does not make him any less awful.

If by spectrum the psychopathy spectrum is meant, then yes, he's on the spectrum.

Could it be people dislike him because he enables anti-democratic capabilities like mass domestic surveillance, and enthusiastically supports an administration with little regard for the law?

I feel like 95% of the hate he gets is because he is CEO of a firm whose Chairman is a fascist and whose role is driving democratic states into fascism, which as a person opposed to fascism (and incidentally on the spectrum) makes me happy.