Simmons College librarians are warning against “transmisic microaggressions” in a new guide arguing that cisgender people are “fragile” and “defensive.”

The “Anti-Transmisia” guide seeks to resist the “systemized discrimination or antagonism directed against transgender/nonbinary/genderqueer/agender persons,” explaining that it is a form of hatred “rooted in a desire to maintain the gender binary.”

“Cis people therefore can exhibit a low tolerance for that which challenges their gender identities.”

The gender binary, the librarians argue, is a social construction that causes so-called transmisia and “obscures the reality of the spectrum and fluidity of gender and marginalizes the identities and experiences of persons whose gender does not align with their birth-assigned sex.”