> The bubbles are getting incredibly smaller that its very worrying.

I'd argue that most people did that before Facebook, and still do that outside of Facebook. It is your responsibility to get surrounded by different kind of people. It's not easy, and most people won't be able to do it, but if you're living in an echo chamber it has always been your fault.

(I'll admit that geography sometimes doesn't help. For example I live in Chicago and it's not the best place to meet Trump supporters.)