I respectfully disagree with the comparison of men with facial hair to women with make up. Totally different. The hair on my face is natural.
The opposite of your assertion could be stated, that men who shave are hiding their natural appearance. Where do hair styles enter in? If I grow a pony tail does that make me a rebel? Chic? A convict? An intellect? Effeminate? Who makes those judgments? Why does it matter anyway? Maybe I grow it because my dear uncle had one, or I am playing a part in a play with a bearded character, or my wife likes it, or my daughter,
or it's experimental, or a million other reasons? Does it have to be a mask?
I do agree though that the true self is defined by something far more important than any physical appearance, which matters so very little. But can't my beard just be a beard? Why can't a man's natural appearance include or exclude facial hair? This thread has proven that some women like it for that reason, some women dislike it for this reason.
Certainly women who use make up are hiding their natural appearance; enhancement to some, detraction to others. But make up is not natural, facial hair on men is!
I would add that one could also say that shaving everyday is Vanity! I am growing a beard right now myself.Some like it, some don't.