David Brooks suggests that love can bridge gaps and provide a unifying force.

"What big idea counteracts division, fragmentation, alienation? It is found in Leviticus and Matthew: Love your neighbor. Today’s left and right are fueled by anger and seek conflict. The big idea for moderates should be solidarity, fraternity, conversation across difference. A moderate agenda should magnify our affections for one another."

I discuss that and other solutions in my https://medium.com/illumination-curated/can-we-please-all-find-the-space-within-which-to-breathe-the-same-air-and-agree-not-to-agree-6b6b2c8077ec