Anon, there are a lot of species that evolved from species that were natural enemies. Reptilian Orandans used to hunt mammalian Orandans. Blue Voraspians used to hunt Reds. They're all perfectly civilized peoples now.

This conversation is really uncomfortable in a few places. It's kind of uncomfortably fetishy to play up a dynamic like that. They're both evolved sentients. This sounds dangerously like you're implying Sly Fox is like some kind of predatory person -- which is gross rhetoric that's been used in a lot of forms of bigotry to depict certain peoples or species as "savage" through history. And it infantilizes and makes Sly Bunny out to just be some fragile victim. That fic that got linked even goes some places that play up Sly Bunny as being in a passive role, when everything we've ever heard about her is that she's really assertive, and plays up their their "wildness."

If this is the angle the fandom is starting to take with them, it's really gross. And I say this as someone who ships them. They're both normal civilized sentients and the appeal to me is that they're friends, partners, and equals that apparently banter a lot together. There's nothing dark or predatory or "wild" or whatever about that. The only wild thing in the ship is his last name.