Social and content silos, our natural tendency to create filter bubbles, and adversarial machine learning 'curating' your experiences and thus effectively, your culture; this is the danger.
I'd love too see the empirical evidence for this.
https://en.wikipedia.org/wiki/Tribalism
Group selection would be another area that might provide some more information on related arguments:
The article base all its premise on the axiom that we're tribal by nature, and I think while we might all think that makes sense, I've never seen data to indicate we are innately tribal.
Great empirical evidence in there
There's also examples of multi-tribal membership, like belonging to multiple groups at ounce. Such as your family, your sports team, your city, country, etc, but also things like multi citizenship, mixed race, etc.
You've also got examples of tribes growing massively in size to the point that it's bigger then our social circle. The US is a great example, it's bigger then anyone's social circle, yet people identify at its level and are united within.
I can as easily claim that humans are not inherently tribal, but are inherently lead to organize in ways they believe most beneficial to themselves, which often times leads them to tribes, but not always.
