Bernie Sanders and his young supporters say, “No worries, we’re democratic socialists.” Outsiders say, “No problem, they barely know what socialism is.” Others see Sanders’s movement as a passing response to an economic downturn. All of this is largely mistaken. Modern American socialism is decidedly undemocratic; its young acolytes are far less ignorant of socialism than they appear; and contemporary socialism is more of a religious than an economic phenomenon. Distracted by the disturbing rise of Donald Trump, liberals and conservatives alike are responding far too complacently to a recrudescent socialist movement that is destined to harm our democracy. *********snip***********...