The risk of trying to engage in political debate as individuals is being drowned out by the various tribes in opposition. The reality is that as a matter of self interest it's better to throw your support behind the group that most closely identifies with your set of values. This is a shitty way to go about things, but better than jumping off a cliff.

But Sam Harris is probably right. The real irony is that if Sam Harris were to run for political office I would vote for him, as would many other people, because I think he would be a good representative my 'tribe.' In other words, in our current political system, it's next to impossible to separate identity politics from politics.