Throughout his column, Douthat speaks of how libertarian values restrain fascism--they do. To equate them with conservative ideology, however, is a bit of stretch. Conservatives are not libertarians. Conservatism is not the ally of liberty. It is first and foremost the ally of the status quo and the past. Every attempt to expand human liberty was opposed by conservatives of the day.
In ostensibly promoting tolerance, the essential core of liberalism, left wing extremists have taken on an ill-advised and misguided campaign to enforce an extreme version of political correctness, a form of intolerance that is ironically self-destructively anti-liberal. There is no constitutional right not to be offended.
Bernie Sanders's role is to push Clinton to the left. To push her to actually serve the people. Otherwise, she more than likely will not. And inequality will continue to increase as it has steadily done over the last 30 years. Because as great as Obama was on some issues, he was pretty bad on inequality.
The word "conservative" means something different today from what it used to. Conservatives have traditionally understood the importance of stability--and the dangers of disrupting the established order. They considered it a responsibility to preserve their heritage and pass it down intact to the next generation.
To imply that Bernie Sanders' style of Democratic Socialism even stands on the same side of the political spectrum as the National Socialism of the Nazi Party shows not only a total misunderstanding of history and political theory, but more importantly, it underscores yet again the dog whistle politics of neo-conservatism.