For the simple minded: The Rey-bashing "Mary Sue" crowd in a nutshell
As decades of unrealistic, super-powered-yet-usually-human male characters are released in movies:
Boy: "Yay! He is so awesome! I love James Bond, I love John McClane, I love Bruce Wayne, I love Tony Stark, I love Luke Skywalker, I love Harry Potter, I love... (insert any number of highly popular male hero characters here, there are plenty)."
After a major series, Star Wars, gets a female main character, who is literally super-powered just like her predecessors, and not exactly human:
Boy (now grumpy, with arms crossed): "What is this girl-power bull****??? I'm gonna go online and complain for YEARS about her."
Summary complete.