Thrust: The Stop-loss Policy is part of our contract, it is NOT, as you say, "without consent."It may be considered "involuntary," but not against one's consent.
Your military contract states: "In the event of war, my enlistment in the Armed Forces continues until six (6) months after the war ends, unless the enlistment is ended sooner by the President of the United States."
Not only is it military procedure, but it is part of USC, stating: "... the President may suspend any provision of law relating to promotion, retirement, or separation applicable to any member of the armed forces who the President determines is essential to the national security of the United States"
To the Answerer below me: Yes, homosexuality is a reason for discharge or ineligibility.
To answer your question, only those that have applied for Selective Service may be drafted, whether it be man or woman; however, as you know, woman are not required to apply for Selective Service.
Reasons for military discharge or disqualification can be found here:
http://usmilitary.about.com/od/theorderlyroom/a/code2.htm
I recommend that you read that list as it contains the complete documentation of codes and reasons one would not be permitted in the military.
No, not drafting women would not be sexist. Who would be left on the homefront to make supplies, care for children and keep the economy going? If everyone was away at was there would be no one left to do this.