I never noticed before that in the vast majority of societies throughout history and today men are effectively second class citizens. Remember how long it took for men to get the vote! And how in some cultures men are effectively the property of their wives! And there are those religious courts where they simply state that a man's statement doesn't count for as much as a woman's statement!
I've got a million of these. It doesn't matter how many long-winded, carefully constructed points to the contrary are raised; every day I see women ignored, overlooked, and unconsciously stepped around in a way that happens far, far less frequently to men. The very fact that the counter-argument has to be carefully constructed is itself damning when compared to the simplicity and ease of verifying what it opposes.