That Hollywood thinks that it can rejuvenate old franchises by just swapping out the male characters for female equivalents and just call it a day. It's not that complicated...
Mad Max, Charlie's Angels, Pretty Woman, and Wonder Woman are all examples of movies/franchises that have been commercially successful and critically well-received, while at the same time featuring strong female characters/presence. That was the point of listing them as examples.
If was really true that audiences at large just blindly hated on movies for featuring women in them. Those movies would have never done well, or potentially even been green lit.
The recent gender swapping is very blatant pandering to what Hollywood thinks audiences want to see, and the feminizeAMovie hashtag is bringing light to the situation by flanderizing the movie titles.