Torrent aggregator sites/discords have small groups of people behind them to arrest or sue. A blockchain would have a large impractical group of people to arrest or sue, it would be like when the RIAA tried to sue Kazaa users.

It’s unclear how this is true. You would still need tools to search the blockchain for the content you’re looking for. Someone would also need to curate and coordinate the format for embedding this information. Anyone involved with either of those steps could be targeted. Those are just off the top of my head. There are likely more holes than that.

It’s not a tech issue. You can target anyone that’s part of a disaggregated network and broadcasts it. That’s true for torrents, TOR nodes, or blockchains.

That's exactly my point, at some point the legal system doesn't scale as well as the technology.