I question the sincerity of their arguments. The same person posted at least one ridiculous nonsequitur (about guns), quoted the same passage several times in several places with demonstrably incorrect explanation of its meaning (even after being corrected about what California law says about the subject, with references), made silly analogies about living rooms, and all around pulled a Gish Gallop spread across a couple dozen comments.

If a "civil" argument is designed to mislead and intended to make the conversation incomprehensible, can it be anything other than a troll? This is a trolling tactic and has been forever. Look up "forum sliding", for another fun explanation of one of the tactics hyperliner is using.