Any person who uses "libtard" in a sentence un-ironically--meaning they really intended it as an insult--is not worth arguing with.
My favorite is that i've seen these types called liberals hateful, they can only argue with insults, and say stuff like "when Obama was president we didn't like it but we accepted it" . I cant tell if I'm being trolled or if there is really this level of delusion out there. I always ask them "how many times have you called people libtards?". My favorite was when one person said " well i only call them libtards because they are libtards!" after complaining about liberals being mean, calling conservatives names, and being mean to his president.
I just thought that was an interesting tangentially related anecdote .