I've always found it weird that Alya was the holder of the fox miraculous mostly because foxes are sneaky and they steal chicken and in pop culture they are knows as such. In stories they also add lying as a trait foxes possess. If you had watched Zootopia you probably remember how those stereotypes ruined Nick's childhood because no matter how hard he tried, other animals didn't like him because he was a fox (Judy didn't like him because she had childhood trauma, her fear was still more valid than others' but that's a different story).
So I always thought the whole fox thing is perfect for Lila but she didn't deserve the miraculous. But illusions and all, it does work better on somebody who's whole life is lie that she made up and who wants to gaslight gatekeep girlboss her way through everything. Black cats are also infamous but bad luck and Adrien's bad luck in his personal life work together, but now that the fox miraculous is in the wrong hands there's always been only one person who's "perfect" (in the wrong way) for it.
No wonder she wanted that miraculous so badly, Lila knows it's her thing 😂