This isn't a liberal/ conservative issue, but nice try, comrade. I'm in favor of a social safety net, accessible healthcare for all, and a few other 'liberal' policies, but I'm with you on this one. 'Libs' aren't some homogeneous bloc, you should get out of that basement and meet a few.
I miss the good ol' days when people made their minds up on individual issues, instead of shouting down the other tribe. Pre Limbaugh, and Falwell et al.
Identity politics is what is driving debate on this issue on both sides of the fence, regrettably.