I have met a large number of Leftists who self identify as both socialist and libertarian.
On the one hand, they want everything they think is good for society forced on them, but on the other hand, recognize on some level that legislating morality is wrong. On some level, they concede that might and poll numbers does not make right, hence the mental gymnastics of convincing themselves they want to support the free will of being a libertarian. It is a Dr. Jeckle and Mr. Hyde tope of mentality.
It goes something like this, they are libertarian when it comes to drugs and sex, but when it comes to taking the jab or gun rights......well............we simply need to shift gears is all.