Women were allowed to own and drive cars in the 1920s and 1930s. They could go dancing, have fun, have sex, explore life, make their own decisions, and live independently....
Then World War 2 came, and women worked physically hard in factories building guns, tanks, boats, and planes for America's (male) Armed Forces....
Then Peace came, and women were sent back into the home to do dishes, clean, cook, and take care of babies.
Now woman can serve in the Armed Forces, where they are often raped like Comfort Women. They can also go into battle and get killed equally with men.
Progress.