But to grant them the power to impose involuntary servitude upon a minority (not convicted of any crime) is not granted in the Constitution, yet you favor bestowing this upon them under the "social contract" legal theory. To enable government to assume powers not constitutionally granted them, & to ignore civil liberties explicitly granted us, this effectively removes all limits on governmental power. If they "want" something, then we're left with nothing to stop them so long as a majority of voters doesn't object.
At this point, we cease being a constitutional republic, & become a quasi-democratic tyranny of the majority. This last claim is not mere histrionics because it is the majority who vote to impose the duty to fight in the trenches upon a small minority, ie, males between 20 & 25 who aren't clergy, who have low draft lottery numbers, who aren't politically connected, who are healthy, who aren't felons, who don't have a family to support, who aren't in seminary school, but who are legal residents (even non-citizens). We should note that this would appear to violate the "social contract" of equal treatment under the law. No women or clergy have any legal obligation to defend the country. And until recently gays were even prohibited from serving (per the "social contract" of that day). We don't allow housing discrimination against them per law & social contract. It seems that your social contract is naught but an excuse to act with caprice but without constitutional limitation.
This is not to put words in your mouth, but to claim ramifications from your position.