to add to the discussion in the comments, i think there's a huge distinction between making porn of real, non-consenting people and making porn of fictional characters acted by people. porn of these characters isn't much different from porn of a character who has a voice actor behind them. sure, vtubing is a lot more involved than just voice acting but at the end of the day those people are far enough disconnected from the persona they put on that it's not as bad as it could be. though that's just my opinion.
to add to the discussion in the comments, i think there's a huge distinction between making porn of real, non-consenting people and making porn of fictional characters acted by people. porn of these characters isn't much different from porn of a character who has a voice actor behind them. sure, vtubing is a lot more involved than just voice acting but at the end of the day those people are far enough disconnected from the persona they put on that it's not as bad as it could be. though that's just my opinion.