Equating tans status to race is disrespectful. How one personally interprets their own sexuality and gender does not make them a minority. Nor does it oblige others to agree with one's reasoning and conclusions.
Gender is a social construct, like language is, created to communicate someone's sex and therefore physical predisposition within the context of society. I personally don't see the advantage of rebelling against the colloquialism, or outright rejecting it, especially when one wants to promote acceptance. It may be outdated to perceive things through the binary filter, but outright rejecting the past undermines the thing that gave you existence.
As gender is a social construct, transgenderism is a behavior--not an inherited physical trait for which someone has no control over.