Umm... what, Arturick? Characters should be relatable or you won't care; but if they're inhuman and you can relate to them, you're saying it's blatant and artificial? Catch-22?
How does were-fox equate to sexual deviancy, too? O_o
I read a series of books called "The Dungeon," by several authors coordinated by Philip Jose Farmer. The main character is a British army officer named Clive. At one point, Clive is travelling with a giant,
slightly anthropomorphic spider and an alien cyborg. Clive comes to respect, and ultimately love, both of these aliens, but acknowledges the irreconcilable differences between them. The spider kills and eats her mates, who are also sentient beings, but that is just how she is wired. The cyborg will absorb machines and sentient beings to add to his personal power and intelligence, because that is the way his kind advance themselves. The characters are definitely still alien, but you view them through Clive's eyes. I would not read a book about the spider and the cyborg going on adventures together.
Now the smurfs from Avatar were just blue people with a more intimate way of having sex that can totally be shared with humans if we just get a few modifications and machines involved. The Elder Scrolls Argonians are just put upon slave folk, and isn't that a shame because it's immediately obvious that they're just like the rest of us once you get past the scales. "Yes, I lay eggs and bury them in the mud, which would imply a different family structure than... oh, here comes my beloved daughter and husband."
The only reason I can tolerate dwarves and elves is because they're such staples of the genre that you don't even think about it anymore. As has already been suggested, they can, in many campaigns, be seemlessly translated into humans with certain proclivities.
"Hrmp," sniffed the Brit-Elf, "I've had to stand at attention for hours listening to the nobles give speeches about grain harvests and sewer works. It will take more than petty magics to make me fall asleep."
Also, I'm falling down, barely functional tired right now, but trying to look productive at work. Must... get... sleep apnea... treated... Ahem. Sorry if I'm rambling.
Now, if the player wants a truly alien character and the rest of the group wants to roleplay the ensuing, awkward interactions, that's one thing. If the whole party is Bob the Minotaur, Suzy the Medusa, and Ricky the Rakshasa, all of whom have exemplary table manners and Midwestern accents... Bleah, dragon-tits.
As for were-foxes: Bias based on experience. Multiple examples of type.
And, you know, like I said in the OP... These are just my personal biases based on the sort of stories I like in games that I run, play in, or am some sort of audience for.