Nicole Wallace, of MSNBC, says there isn’t any on the Left.  She insists, regarding Congressman Steve King’s (R, IA) remarks, there is no analogue on the Left.

…this does not have a parallel on the left. It doesn’t. There isn’t. There isn’t a strain of racism on the left.

Never mind that the identity politics of the Left, especially with the segregationist bent inherent in it, is fundamentally racist.

Never mind the overt racism of the Left’s heroine Tamika Mallory and her praise of the anti-Semitic bigot Louis Farrakhan.

Never mind the Left’s routine labeling conservative Blacks as Uncle Toms.

Never mind the Left’s routine vilification of conservative women as voting the way their husbands tell them to, or of being worthy targets of rape.

Never mind the Left’s labeling any who disagree with them irredeemably deplorable.

Never mind the Left’s slur of Tea Partiers as tea baggers.

No, none of that is racist, or sexist, or anti-Semitic, or general, casual bigotry.