Is there a name for this fallacy? Where differing views within a diverse community are interpreted as individual hypocrisy?

Not sure if there's a more specific word for it, but it's basically just a straw man attack: constructing a single "opponent" from disjointed pieces of information. As such, you could also classify it as a hasty generalization or a composition error.

Just compare the comments on any AI art story with the comments on https://news.ycombinator.com/item?id=35418760

Not everyone on hn shares that opinion. Ai products are great but not when trained using stolen ip. At the moment there is no way to prevent openai’s products from ripping code or web content and then spitting it out without royalties. And that’s quite an issue.

I think this comment would be a better jumping off point for discussion if it were responding to a specific individual and showing curiosity rather than making multiple broad assumptions about the community at large.