How about the Constitutional argument, namely that the President is the CINC, and he has the constitutional authority to establish the ROEs not the Congress.
Don't like the ROEs get a new President. I don't, and this option is fine with me.
I know folks can't understand this, but Paul votes against lots of things because he believes them to be unconstitutional acts. It is astonishing that anyone in the Congress would take that stance, but there you are.

Where in the constitution does it say he can deny soldiers’ rights to defend themsleves?
In your view, does Obama also have the 'constitutional right' to push the homosexual agenda on our military, which Ron Paul also supported?