I don't think trans women must conform to some arbitrary state of femininity to be women, nor do I care if they conform to femininity so long as they are not saying they are women because of their conformity or claiming women must be feminine to be women (which, unfortunately, seems to be what many trans people are arguing).

Culturally speaking, we live under a societal structure where women are defined by femininity. I'd like to dismantle these gendered associations. Even with the elimination of these gendered associations, I don't think trans people are magically going away. While I do believe much of gender dysphoria is a product of being socialized in a gendered society (especially the aspects related to gender expression), I also support the notion there is a biological basis for the aspects of gender dysphoria related to distress around physiological characteristics.

At the end of the day, a world where a person chooses their gender based on their own sense of identity is far more ideal than the one we currently live in, where females are heavily conditioned in femininity regardless of their identity or their preferred gender expression. This doesn't mean we should have self identification laws (disagree with those absolutely - they should be based on sex), just that a person's gender (socially speaking) should simply be based on what they decide for themselves rather than some arbitrary characteristic of socialization.