Moms for Liberty, the Young America's Foundation and attorneys general of Kansas, Wyoming, Utah and Alaska have joined the stampede of litigation against the Biden administration's Title IX regulation that adds gender identity to the law on sex-based discrimination in education.

They filed a federal lawsuit Tuesday afternoon alleging the regulation infringes on the First Amendment rights of students and teachers by forcing them to "use incorrect pronouns, affirm queer theory" and self-censor about "their physical safety and privacy" in sex-segregated spaces and athletics to avoid harassment investigations.

It also violates the constitutional rights of parents, "who are entitled to raise their children to share certain values and beliefs to direct the upbringing of their children, by requiring conformity to the federal government’s views on biology and so-called gender identity," the non-state plaintiffs' lawyers at the Southeastern Legal Foundation said in a press release.