Looking Left and Right: Unsettling Truths

Nowadays the members of one tribe (calling themselves liberals, progressives, and Democrats) hold sharply different views and values than the members of the other (conservatives, Tea Partiers, and Republicans).
Each tribe has contrasting ideas about rights and freedoms (for liberals, reproductive rights and equal marriage rights; for conservatives, the right to own a gun and do what you want with your property).
Each has its own totems (social insurance versus smaller government) and taboos (cutting entitlements or raising taxes). Each, its own demons (the Tea Party and Ted Cruz; the Affordable Care Act and Barack Obama); its own version of truth (one believes in climate change and evolution; the other doesn’t); and its own media that confirm its beliefs….
[T]he two tribes are pulling America apart, often putting tribal goals over the national interest.

Anyone care to offer a strong (or even a mild) disagreement with Robert Reich’s assessment?