Liberals want a smaller "military-industrial complex." They want less law enforcement because criminals are just "victims of society." Liberals are quite libertarian when it comes to questions of "civil liberties" like a woman's right to kill her unborn baby, or the "right" to anal sex.
The liberals don't want less law enforcement. They, like you, simply want it to enforce laws against things they don't personally like, but which would be considered vices rather than crimes.
And, while I don't condone abortion, I cannot see forcing a woman to carry a child she doesn't want (there is a difference, but I bet you're too narrow minded to actually see it). And, if folks want to have anal sex in the privacy of their own homes, what business is it of yours or mine?