Advocating sedition seems like a fundamentally different thing with a lot more political implications. Normally such a thing would result in the censure of individuals, not entire classes of individuals.
[1] https://en.wikipedia.org/wiki/Hate_speech_laws_by_country
Parler was specific community with a specific set of inadequate moderation policies and became a center of thought for a violent community that ended up engaged in political violence. And that site, and only that site, thus became a target for broad suppression by other actors in the market.
https://lop.parl.ca/sites/PublicWebsite/default/en_CA/Resear...
I do however think extreme hate speech is a real thing, it's just misapplied to the point where anything anyone disagrees with is labeled hate speech.
Because at the end of the day, all negativity is based on hate, right? If you can't say something nice, don't say anything at all (which is a nice convenient bromide for eliminating real critical thought.)