Should the government ramp up its efforts to help the needy? Democrats overwhelmingly say yes (71 percent); the other party, at 54 percent, is less enthusiastic. Is racial discrimination the primary reason why black Americans can’t get ahead these days? Sixty-four percent of Democrats say yes; you know what the other party thinks: Only 28 percent answer in the affirmative. Do immigrants benefit the country? Democrats overwhelmingly say yes (84 percent); their counterparts are split at 50 percent. Same-sex marriage is approved of by 73 percent of Democrats, but only by 53 percent of those on the other side. Clearly, ours is a polarized age, with tribal consolidation happening at a breakneck pace.