As long as their leaders and famous journalists are clear they're a perspective and not "the truth", I m fine with the communists fighting the nationalists in their respective newspapers even if I disagree with what I read. At least I know what and why they think these things and I can sometimes accept an argument if only to build an iterative counter argument myself.
The difference I saw with facebook even in France, is that it's all blurred. I cant cross the Figaro with the Monde to figure two of the sides of an issue, now I receive some neutral looking information with a vague source. It struck me when a colleague started repeating an horrendous story and we investigated together to realize she was sourcing it from a facebook post by our "the onion" equivalent !!! She couldnt see the source because it's too blurry in between her grandma rants and some cnn-style generic information.
It doesnt change that in the US I see with worry that even when lines are clear, the debate is heated. Also because there's no spectrum but just two solutions to any issue: democrat and republican. What was hailed as a miracle in democracy (just 2 fuzzy groups of dispationate interest) is starting to look like a weakness (to the death identity conflicts pushed by their respective extremes) while with 13 parties in elections in France, you can express nuances.
The chained duck? (I prefer mine au confit, not enchainé.)