How does uniqueness go out the door when everyone has excess to the same items? (´・ω・`)?
Items/outfits get popular and, eventually, overused because people gravitate to those items/outfits. You speak as if it the same thing wouldn't happen even if there was more items locked behind race and gender. In fact, it would make popular races and genders more frequent as popular aesthetics get locked behind them.
And to throw the question I asked Canadane at you: What would you do if Female Hyurs didn't have the aesthetic you wanted (which I assume is the heavy armor look)? Would you change to the race and gender combination or would you stick with the generic fantasy girl aesthetic female Hyur have?