The attacker videos seemly were mostly about exercising, vegan diet, and some lighthearted videos...
AFTER demonetization, seemly some videos with criticism about Youtube and US, saying that Iran (her home country) had more free speech than US, showed up.
At the risk of drumming up unneeded controversy, it reminds me of when Marine Le Pen in France tweeted graphic images from ISIS actions as a rallying cry against them, only to be charged by the state with circulating violent content inciting terrorism ( https://www.theguardian.com/world/2018/mar/01/marine-le-pen-... ). Without proper application of context and judgment, a terrorist spreading propaganda and an anti-terrorist illustrating the terrorist's propaganda would be seen as the same sort of thing.
Of course, there's no simple solution -- we wouldn't want a world in which someone could get out of responsibility for spreading needlessly graphic content just by saying "oh I was just spreading it for educational purposes!".
Can automated processes ever hope to achieve the nuance we need in our societies?
Well, it's not exactly that: it was a response to a comment from a journalist, which could be interpreted as equating the Front National (MLP's party) to ISIS.
I think all speech should be protected (the good, the bad, and the weird). Ideas should die on their own merits.
One of the big issues with the demonetization on YouTube is that it's a binary flag -- either "acceptable content for advertisers" or "unacceptable for advertisers." As if advertisers were a single block with a single set of values!
When YouTube is not under an obligation to act as the virtual-public-square (because "they're a private company"), then they are especially vulnerable to defining that "acceptability" either by internal ideological conformity, or by external ideological pressure. Part of the concept of "free speech" (as a doctrine, not just as 1A legal structure) is that it allows for a society where the distinction of "I don't agree with this but someone out there might and so it's OK for it to exist" is a distinction that is possible. Without that, we're left with a world in which expression has to be mediated by the approval/whims of external forces for it to be present.
Whatever strange, fringe things this person was having as YouTube videos, I'd be willing to guess there's some fringe company out there who wouldn't care if they were advertised on those videos. Think of the kinds of advertisers 4chan, Infowars, or adult websites get. Their standards don't fit into a generic mold of "acceptability." But if someone was a video creator who wanted to court such advertisers, what kind of audience would they even be able to build without access to the de-facto public-square that YouTube is?
I don't know how to get there from here. But I think a more healthy ad-revenue model would somehow have YouTube saying "OK, these mainstream videos are able to be monetized by mainstream ads from companies A B and C, while these fringe/controversial videos can be monetized by whatever companies X Y and Z want to."