A Paladin is half bear half mage and Ranger is half bear half bird. We can see in endgame that rhino is very OP with the right sets but can still be killed. Foxes on the other hand are bad no matter what in endgame unless they get a proper set which hasn't happened since 77 cap. Even though fox is half bear we dont see the tankiness in it which i feel is the problem. They can do a lot of dmg (with the proper gear) but not enough armor and such to survive which is why rhino is so OP at endgame and fox class is not.