Price of freedom is eternal vigilance
Because you never really win. After all, that's the thing about a free society: a society is not truly free if it does not give enemies of freedom enough berth to try and destroy it—or at least its freedom.
We may be able to hold the tide back. We may be able to stop Obama, his cronies, and "the powers that be", especially if Democrats lose control of the House, where spending bills must originate, in 2010. We may be able to stop government intrusion into private health care system, and the final form of ObamaCare passed may be the best we could hope for: one that fixes what is broken (tort reform, less restriction on selling insurance across state lines, and removal of distorting tax incentives that ties insurance to employers) and leaves alone what works (the rest of the system).
Would that mean that we won and our children can live in peace?
Of course not. It might mean that this temporary victory may be so overwhelming, like our victory over U.S.S.R., that no statist would have the audacity to try it again for decades. But more likely than not, we will have to fight another similar battle in our lifetime once more, and our children will almost definitely have to earn their own freedom. After all, we have a republic if we can keep it, and each generation must prove that they can keep it.