I disagree that just because their numbers are few, that barring them would be insignificant.  This country was founded on the belief that ALL people deserve equal rights. Just because a group of people is small, should not change how they are treated.

And I also disagree with the suggestion that one type of trans person would be not allowed over another. My example was more to show that physical/mental requirements to get into the military should still be required. A trans person who recently had surgery done, and is going to need more surgeries, or if they are going to need psychological treatment - I think those should be taken into consideration before allowing them to join or not.  Just like a person with a broken leg would not be allowed in the military until its healed, I would say the same should be applied to someone who goes through any gender changing surgery.  

The blanket statement from Trump disregards the trans people who are both physically and mentally able to serve.