Fantasy dosent need to be magical, just fantastical. It has a very loose definition.
You have beastfolk a made up race, so yes you can define it as fantasy if you want.
However if youd trying to figure out what to label it as its important to remember genre acts more as a guide,a loose collection of ideas, for publishers to easily markeet to their target audiencs.
So less "is it fantasy" and more "if i label it as fantasy would i draw in the correct audience"
Most superheros technaically can fall under fantasy and yet it gets marketed more as science fiction, with the few exeptions being characters liks thor or dr.strange. though even than in alot of thor stories he can fall under sci-fi with writers like jack kirby.