Hey Eric,
I have a somewhat different view than those already expressed.
Let's suppose you're correct: the battle for liberty is lost. This would not be reason for me to give up the cause or my active involvement in it. I love reading and learning ever more about the philosophical, legal, ethical, economic, historical, and psychological foundations of libertarianism. I love contemplating the profound implications of its principles. I love explaining libertarian ideas to interested relatives, friends, and strangers. I love hearing a friend or correspondent say, "I've changed my mind, your ideas do make sense." I love thinking about the wonderful world freedom would bring. I love trying to solve libertarian conundrums. I love connecting with like-minded individuals. I love contemplating the beauty and clarity of the philosophy of liberty. I love the excitement of being part of a growing (though still small) Ron Paul R3volution. I love debating with lefties, righties, minarchists, utilitarians, and objectivists.
It would indeed be sad if the battle for liberty were lost. However it would hardly dampen my passion for liberty or negate the richness it continues to bring to my life.
Warm regards, Michael