Sigh.
I bet Harvard's nondiscrimination policy includes age and disability as well. Right? (crickets from the trans advocates)
Obviously, as a trans veteran, I support trans inclusion and equal treatment in the military. I just don't think this line of attack is the right one. We accept, as a society, that the military can be allowed to discriminate based on factors that we wouldn't allow other institutions to use. (Leaving aside whether I personally agree with that, it's a fact that it's generally accepted.) If we believe that military discrimination against trans (or, historically, gay or black or female) people is not justified, we need to make an argument for why that particular characteristic isn't an acceptable rationale for military discrimination.