I'm glad I'm not the only one who's noticed this, but it's not even "men are stupid" that's prevalent, actually.
Take a look at commercials where the man and woman are both average, equal in looks and apparent intelligence where neither is depicted as stupid. The majority of the time, the man will be the one who's wrong and the woman will be presenting the more efficient, smarter, or better method of doing something or product. This is what I hate about society. We do something stupid; racism, sexism, whatever it is until someone makes us go "Y'know, this is a bad idea. We shouldn't do this." Things are good at that point. Then society does a 180 and swings the pendulum as far in the opposite direction as they possibly can.
1. We've presented women as being less valued than men in advertising. (That's a bad idea, we shouldn't do that)
2. Feminist movement: Women want to be treated equally to men. (Good idea)
3. Pendulum swings.
4. Men are idiots who are barely capable of doing day to day functional tasks. Ha ha, let's laugh at the big dumb male. (Really? Isn't this back where we started, only in reverse?)
It's not just sexism, it's just about anything. Look at the housing crisis.
1. Give anyone, ANYONE, as much money as we can throw at them. No credit history? Bankruptcy? TAKE THE MONEY!
2. Market collapses due to stupidity.
3. Pendulum swings.
4. Sorry, your 825 credit score, flawless credit history, and stability in your current career and financial situation just isn't enough to get you the loan you'd like for a new house. Maybe in a year or so?
I've concluded human beings are simply wildly overreactionary.
In closing: Nerf rogues.