Here’s an exchange on Twitter that illustrates how intersectionality-related identity politics undermines opposition to President Trump.

Blair Imani objected to women on the march carrying signs which were “cissexist”: presumably because they referred to the type of genitalia that women have, but transwomen often lack.

Why should anybody care?

We should care because Blair Imani is a press officer for Planned Parenthood, which was a Partner of the Women’s March. Not only did she “confront” women for making a reasonable point – that President Trump has boasted of grabbing women “by the pussy”. She also advertised the fact that she had done so, on fifteen occasions, on Twitter.

So, that’s fifteen women who may think twice about voicing their opposition to President Trump’s conduct in future.