Right, but the guidelines is based on a logical connection to the required job. An obese person cannot perform the basic job functions. If someone shows me that a trans person cannot, than by all means ban them. But as we have seen, they can. That is why is it more comparable to being black than to being obese. The military is not exempt from our laws, they don't get to illegally discriminant. And we aren't event talking about joining the military, trump is talking about kicking out people already serving.