I think another reason people stereotype Libras as air-heads is because, even though it is a masculine sign, it's still associated with femininity (probably thanks to the ruling planet of Libra) and unfortunately, misogyny is a curse we have to bear for the time being. Think about it. What are women stereotyped as in western society? Shopping addicted, beauty conscious, and talkative (eventhough statistically men tend to dominate conversations). And these are all things associated with Libra.
I know your rite,. It’s all a product of perception based on outdated stereotypes. I think as the Age of Aquarius sinks in more and more you’ll see these kinds of perceptions fade off. People not only are becoming more forced to recognized for their individualizes,but i think they are being forced to take on more non-traditional roles like when you saw marriage dominate the Pisces Age.
During my lifetime I have seen “the Venus perception change.” For instance it as not uncommon that i heard things like “you dress well, you must be gay” or A man who enjoyed peace and was sensual was deemed “feminine and gay” because it was womanly. I do see hope for it changing. I think over the next hundreds of years you’ll see a shift as the digital age brings out the more masculine traits of Libras and will make Venus be respected more as the dual gender planet it really is. As people make less money, more deals will need to be made to keep people afloat. And that’s fine by me; the age of Pisces was really ridiculous with it’s heavy emphasis on the masculine, over bearing and consuming energy the world valued. It’ll change in the Age of aquarius when the value system shifts more feminine so we see it as it really is..