"Libertarian" and traditional liberal ideals have a lot in common.  I oppose authoritarian, and especially totalitarian, efforts and advocacy.  I oppose people ignoring the very facts of history, trying to either completely erase those facts or completely altering their meaning.  The Leftists of today are totally accepting of any and all force against ALL people who deviate the slightest from their narrative.  Witness the assault by Leftist racists against the professor at Evergreen State College, just one of many examples of attacks on traditional liberals by the hate-based Left:
https://www.youtube.com/watch?v=-fEAPcgxnyY