Democrats don’t need to do it, you speak for them.
Looking at your tagline I think you don’t understand that libertarianism is more of a threat to liberalism than it is to conservatism. Libertarianism is incompatible with some of the Big Government Republicanism that you apparently support like the war on drugs. But most conservative ideas, both social (the right to life, privacy from big brotherism) and economic and political are very compatible. On the other hand libertarianism is incompatible with almost the entire liberal/Democrat agenda. Even if you want to talk about social issues like gay marriage and abortion the liberals use big government to force their opinions and agenda on others, there is nothing libertarian about that. Every liberal idea is wrapped up with the power of government forcing that idea upon you. Fighting against that idea is the only hope America has. Unfortunately for some breeds of conservatives their desire to hang on to the power of government to regulate culture and behavior means they are willing to ride the Titanic down. Hope you can swim.