There is no poll option for "I hope not".
The whole issue is stupid. Your points are designed to mislead the school from your real objective, and your plan helps no one.
1. Your assumption that the differences between the sexes is a societal implication and not a natural one. Pro-tip: It's not. There are actual differences between the sexes, and more than just the physical. Society has simply exagerated what existed naturally.
2. Gender-neutral is code for " I don't like the way I've been treated as male/female, so I want everyone to ignore my sex and everyone else's, because I can't cope with myself". Gender-neutral also speaks to ignorance about my first point.
3. As outlined, your prefered action is that you are allowed to dress as a girl. Presumably, because you "feel like one". While I don't believe in the majority of the idea of "transgendered", I think if you want to dress that way, you should be allowed to. But your plan is not going to result in your desired outcome, but rather an intentional ignoring that is inflicted on everyone around you. Congrats, you've forced your will on everyone else, and won nothing.
The only realistic solution, at least one where you aren't screwing everyone else in your school while trying to accomplish your own goals, is to eliminate the dress code. Which opens your classmates and yourself to dress how you want, which ( unless abused) would benefit everyone.
This is why I hate some activists and protestors. Minority or not, they are willing to ruin everyone else's day, just to be annoying. Because ( as is this case in this situation) it's not about getting something productive done, it's not about being heard, it's not about being fair. . . It's about winning. . .even if they don't win anything.