If everyone thought the same and occupied the same niche of the political spectrum elections would hardly be needed at all. The truth is that the spectrum goes way beyond Team A and Team B and different readers of this forum and elsewhere may fit into moderate niches. Some of them resonate with writers from The Nation. How would such persons grow in their perspective and move further to the Left if some articles and authors don't "meet" them where they are?
I happen to think that military right wing authoritarians occupy this forum and take aim at just about every writer and activist--often including Amy Goodman, Naomi Klein, Bill McKibben, Noam Chomsky, and at times, Chris Hedges--largely to discredit them. And if those on the front line fighting for environmental justice, civil rights, women's rights, and OTHER than militarism are set up for target practice, who remains to carry the banners for these causes in an era that is increasingly limited and/or locked down by corporate controls and paid commanders of one sect or another?
If the whole world thought like you and you alone, it would be clones.
Allow others a chance to catch on without demonizing those who may be more moderate and inclusive in their philosophy. Having said that, I recognize it's the 3rd rail to Agent Provocateur types who must convince honest readers that anyone and everyone on the Left (or left of today's odious and dangerous "center") is compromised, sold-out, or less than honest or useful. How better to stir up frenzy for blind "fighting" back?