What about the role of discourse in achieving integration? You mention news organizations and political speech, but those are one-way processes where they talk and you listen. What about discussions and debates between people with opposing views? That's the kind of interaction I'm interested in seeing. Reddit's r/ChangeMyView subreddit comes kind of close, but it's more about switching between binaries than creating some kind of synthesis.

One might think online communities like Reddit would be perfect for hosting these kinds of debates, but sadly people tend to downvote opinions they disagree with, effectively silencing them and limiting the range of acceptable viewpoints. It would be great if there was a solid, popular platform for rational debate between people with opposing views... keeping it rational seems like the hardest part.