Let's put it this way: words change over time, and if the word changed in the 70s (that was before I was even alive), then it's changed, and the words we use _now_ matter _now_. Language is _never_ static.
2, You keep going back to that 'offense' bit, and referring to 'feelings.' I am not offended. That doesn't come into this at all, as I'm not a liberal. Please read my part about wage gaps, rape culture, and equal rights again.
> Indeed, being offended provides no insight into understanding why you're offended, and without explaining why, there's no basis to make a rational evaluation of whether the behavior that offends you is actually ethically wrong.
As I said before and above, there has been endless explanation of material harm caused by the cultural situation that women (and other minority groups) face today. If you don't know why, at this point, you're just being willfully ignorant.