There is much truth in that video.
(Chapter my sweet, if you’re lurking: Freepmail me!)
Much truth in these too, just nowhere near as well known
“Liberal Douche” by Hugo Ville:
https://www.youtube.com/watch?v=kn8rryvhiaY
and
“The Liberal Song” (”L is for the way you lie to me...”)
https://www.youtube.com/watch?v=MIiFnwVFGRo
but best of all:
“Let’s Drop a Bomb on the Liberals”
https://www.youtube.com/watch?v=sW_6OJZHhqg