“Putting lipstick on a pig makes it still a pig is as old as I can remember.”
Would you say that to your wife when she puts lipstick on?
That’s not even close to the same thing and you know it!
Now if my wife said tomorrow she wanted to start an NFL career and she only had one leg. Than that would make sense for that expression because no matter how strong she was I don’t see any one legged NFL football players.
A little common sense please.