Thoughts!

This topic is one that I am also passionate about and volunteering the YWCA has meant that I've been lucky to learn through some of their resources about hypermasculinity and hypersexualitzation of women in media. In particular, here is a research report that might be helpful in further your analysis: https://ywcavan.org/sites/default/files/resources/downloads/Culture-Shift-Research-Report-Final-WEB.pdf

I think you talk about a lot of points in quite a thorough way such as the concept of the male gaze. I do want to point out towards the end you also mention how some belief in sexual objectification empowering women but I think there is also another viewpoint (for the sake of neutrality in expressing views) is that some women feel that by choosing what they show on social media in terms of less or more conservative clothing or less/more suggestive poses is powerful because it is their decision. I know recently Ariana Grande through some tweets and some other celebrities were mentioning how women shouldn't be shamed for showing cleavage etc because they felt beautiful for doing so or more empowered from it. Not sure if that would be relevant to consider!