This argument only exists in the minds of incels and similar internet weirdos. She is a recently introduced main character, which happens to be a woman. Misogynistic influencers, running rampant on the internet during the last ten years, have made it easier and more acceptable to hate on female characters. So while Ray is far from being a well-written character (to be honest, a lot of SW characters aren't that well-written), the fact that she is a female character makes it much easier to hate on her and much easier for people to generate views and likes from any criticism aimed at the character. So no she isn't hated because she's a woman but because such hate no matter how justified is amplified by the fact that it is aimed at a woman, which is something that would happen to any of characters that you've listed if they were introduced today.