If you want to call it a theory then I suggest working to have it peer reviewed. Otherwise, just call it a hypothesis. I see issues with it, personally, but I'm just one person and am not an expert. I'm finishing my undergrad in psych, but the rest of my comment is based purely on recreational study following experts in personality disorders and extensive therapy myself.

Main thing I'd note is that most people will show some level of narcissistic traits, but meeting the full criteria to label anyone anti authoritarian as narcissistic goes against the point you make in the first few paragraphs that we shouldn't be so quick to throw the term around. Feeling entitled to better pay on it's own can be justified, especially if it's in tandem with wanting fellow workers to receive that same benefit. Quite empathetic, actually. Turning off empathy in specific settings also suggests it's not a pervasive trait, which is an important piece of the DSM that was not mentioned.

I definitely see the argument that some anarchists will meet the criteria. And I agree with a good, maybe even majority of the points, like reducing stigma. Plus, it's expensive to get through an offical peer review process, and you're right that many folks with NPD could never afford that. But I think it would help to at least include some expert opinions and case study examples to support what seems to be mostly anecdotal testimony. Or if you have been diagnosed yourself, build on that as a primary case study example (cuz you do call yourself one, but it's not clear if you went through an assessment for it).

Super interesting idea, though - I'm gonna save it to reread and mull it over some more. Props on getting it published, for sure!

Ninja edit: Holy shit this turned into a much longer comment than I intended, sorry!