Sexism and Physical Strength

My theory is, the chief cause for sexism against women throughout history is mainly due to the fact that the average woman has less natural physical strength than the average man. This gives men the ability to control and rule over women, to put it short. The solution? Become a disgustingly strong and manlike female bodybuilder. Then you can go and face the world with no fears. Too bad I'm just so darn lazy. :)