This underestimates the effect of Bluesky’s culture of “block and move on”. There are curated block lists you can subscribe to. Individual communities do a pretty good job of shutting down toxicity they don’t want to engage with.
Everybody you're blocking is at the whims of the blocklist owner, and it didn't take long for those people to go insane and use their lists as a tool for their own personal unrelated crusades.
Bluesky is already starting to experience this from a few I saw going around
I don't think that'd solve the problem, but it would marginally help (and should be better than the status quo)
(Outside of eventual consistency, of course.)