Help change my friend's opinion on Yona

Recently, I had an argument with my friend because of Yona's character. She's someone that doesn't really like her character because she thinks that all she didn't improve, that she's still a very poor and weak Fighter and all she does is rely on Hak and the Dragon Warriors. In her POV, everytime she tries to fight there's one of the boys that will just stop her because they are afraid she will hurt herself. "She doesn't shine like the boys and put more weight on them. She was supposed to fight with a sword but there's just no scene of her really using it. What a disappointement. Kusanagi seemed to reuse old sexist tropes where the girl is constantly saved by the guys and can't sta'd for herself. She's a bit useless and overrated as a good well written character in the shoujo community" - her words

I was really surprised. I know this person for not too long and it was the first time we talked about shoujo.

It's true that I would have liked more fighting scene but I love how relatable Yona is. She didn't just become a "girlboss" overnight. I don't know how to respond to her comment about the sword. It's true she is often represented with a sword but doesn't use it. Also her argument about her being a weight, relying too much on the guys that outshines her was just exhausting.. I didn't add it before but she also said that the guys just all seemed "to be in love with her" and "protect her", they seem like " accessories" for Yona. She really view Yona of the dawn as very sexist...

What do you think ? How should I respond ?