The anime could complicate such an acquisition because Sony already own both Crunchyroll and Funimation. An argument could be made, especially depending on the market share Crunchyroll & Funimation have in the anime streaming segment, that Sony owning Kadokawa's anime IP & pipeline combined with their ownership of streaming services could give them too much power in that area, similar to the argument we're seeing for Microsoft owning ABK IP like COD alongside owning sub services like Game Pass (AND cloud infrastructure like Azure on top of that).
Of course that depends on the size of some of Kadokawa's anime IP, and I don't think there's really a single anime with the amount of revenue power (through anime and associated merchandise based on them) of One Piece, Dragonball, and Pokemon. Even stuff like Yugioh is kind of far removed from those, and it's a pretty well-known IP. I don't think Kadokawa have any anime IP of that size so that argument against Sony may not actually work, which would potentially allow Sony to get them without divestiture involvement.
In a totally hypothetical scenario, of course.