you’re failing to see the biases inherent to the content you’re consuming

You are underestimating people, I think. People choose their echo chambers because they understand that their positions are being challenged elsewhere. It’s not an inability to see the bias in what they consume, it’s a dislike of the alternative.

Every Trumper I talk to knows very well that Trump is unpopular, that Christian Nationalism is unpopular, that abortion rights are popular, etc, but they don’t care, and they don’t want to constantly be (rightfully) told and shown how dumb they are, so they wall themselves off in their gardens. “I’m just tired of hearing how bad Trump is all the time.”