The thing I've always told friends who try to buy into the whole non-binary thing is that these people are asking the right question but coming up with the exact wrong answer.

Yes you should question traditional gender stereotypes and not feel less than a man if you don't look like a lumberjack etc... They take the opposite route and say ok I'm not an idealized male form therefore I am not a male.

We used to call this sexism when society judged women by their appearance so instead of moving past that and judging people on their actions and qualifications, society has decided to bring men in too and just judge everyone. The only important thing is how you look.