Has progressive activism reached a new low? A George Washington University law professor is threatening to sue Catholic University over its recent decision to return to single-sex dorms.

The professor, John Banzhaf, claims that Catholic’s decision is in violation of a D.C. anti-discrimination law that prohibits discrimination based upon sex.

GW prof John Banzhaf argues that the plan to gender-segregate all of the school’s dorms constitutes illegal sex discrimination under the District of Columbia’s Human Rights Act.

Banzhaf has won more than 100 legal actions under the statute, he said in a statement, adding that the District’s anti-discrimination law “prohibits any discrimination based directly or indirectly upon sex unless it is strictly necessary for the entity to remain in business.”

And since for more than 25 years Catholic University has grown considerably without gender-segregated dorms, “it is very unlikely that this newly-unveiled plan would qualify” as a business necessity, Banzhaf added.