The typical redditor reaction to losing a debate or being confronted by any dissonance is to get pretentious and condescending. That's why they always default to "read a book" or something similar. It makes them feel superior to say it, no matter how obviously it isn't true. One thing about libs is that they have an unparalleled talent for embracing delusion.

The #1 component of "internet debates" I've seen over the past years I've wasted time on them, is that the other side tends to view the debate as "how can I make the other guy feel stupid and make myself feel superior" as opposed to debating the actual facts, or learning anything. It's all a mind game, an emotional and psychic fencing match to them. That makes it a total waste of time, which is why I started clicking disable inbox replies on all my comments on reddit years ago.