(GRR. My computer crashed and just deleted my whole shpiel. Anywho.)
The reason that there are hardly any feminist movements for the drafts is because of the fact that feminists have been historically known to support peace:
http://college.hmco.com/history/read...acemovemen.htm
The Constitution states that no right to vote shall be denied an American citizen on the basis of sex. Some take the loose interpretation of the constitution and say that this "right" can be extended to different aspects of a woman's life, as well. Seeing this, there can be more than one interpretation to the draft. On one hand, the draft can be the right that the Constitution discusses, and it would be up to the individual to protect the liberty of her nation.
On the other hand, the draft can be seen as an invasion on the individual liberty that the Constitution states it would grant any American citizen, in this case, women.