I'm interested in how this taxonomy of discussion works... can you define the lines between what is "fair" discussion, "talking points" "trolling" and "garbage"

I'm interested in how this taxonomy of discussion works... can you define the lines between what is "fair" discussion, "talking points" "trolling" and "garbage"? Like, where does criticism of Israeli military aggression against Palestinians fall? If that's an easy one, what about Ilhan Omar's views on the government's influence in geopolitical affairs? Whatever your answers, would many people not disagree?