In fairness, the song itself is not at all sexist or misogynist etc, what pp seem to be talking about is the images which go along with the song.
As for those images, I see them as empowerment. Elsa has hidden herself away in practice, in looks, etc. Dark, restrictive, all covering clothes, hair tightly back etc.. This seems a way for her to be who see really wants. Light, sparkly, (like ice lol in case that was missed), slit in the dress so she can stride about, hair looser to show she is less repressed. No man involved whatsoever.
As for Anna, I think she is a great character. Emotionally defunct of course, but brave - willing to go off and rescue her sister, befriends and helps a stranger to get the help she needs, tries to climb a mountain with no experience. And I see kristoff as the supporting act to her star, not the other way around. In fairness, he is there more as a packhorse than a hero. And he doesn't even save the day! Anna does.
And true love is shown to be sisterly love (or friendship, as Olaf melting would have been an act of true love as well) rather than romantic male female love.
I think it's great. and I'm clearly far too over invested in this