When voting who should and should not be allowed civil rights be sure to keep one thing in mind. If we don't let the infinitely diverse notes of freedom include a tone from everyone we will never realize the truly harmonious thing that the ring of freedom can be.
Remember as long as anyone's rights remain on a voting ballot, all of us are still on the auction block. You may bring a better price, but with a single vote you could be just as disenfranchised as the rest of us.
One more thing to think on. If marriage must remain between one man and one woman, who should be doing the undies check before the wedding? Is an undies check a close enough look? What if Mrs Jones turns out to have too many male hormones to have babies? How close do you really want to look before you allow me rights?