In terms of culture, in terms of actual people and their actual beliefs, we have actually changed very little in the last 50 years.
We’ve changed “very little” since the time of these ads? When there were still places in Europe where women couldn’t vote? When marry-yor-rapist laws were still common? In those years where we had the first female UK prime minister, the first female German chancellor, the first female US vice president and so on? Come on.
Sexual harassment is very much a problem in modern society, and way too many misogynists still exist, but to say that women are still “not people” and that we’re not moving forward in recent years is definitely an exaggeration. Women from 50 years ago probably wouldn’t believe it if you told them all the progress we’ve made in the meantime.