Libertarians aren't socially regressive, it's the conservative part that is
Even if you hate the idea of illegal abortions, aligning yourself with "big government" in any way would seem to be a foolish move. Every day, you're building a government that's powerful enough to do whatever it wants. That means that when the right christian republican is in the White House with Congressional support who decides to make illegalizing abortion his issue... he/she does it. Just like Progressives have wanted government healthcare for the last century and then when they had a slim majority in Congress for 2 years with the presidency, they rammed through Obamacare and now we're all stuck with it.
Legalized abortion, allowing half the species agency over a basic biological function central to their ability to equally participate in society, is the single most important human rights issue since the outlawing of slavery. Of course it rises to the level of "audibleness." It should be deafening!
