"terf" through the use of additional qualifies implies that radical feminism does not already oppose gender essentialism and male supremacy. Same way "biological male/female" imply that women and men aren't already defined purely by biology. All of these words paint the core and the only as the subset, as one of, as a spin-off even. It's linguistical marginalization and feminist shouldn't entertain it. Say it how it is and people will know what you mean. They know they're bullshitting themselves and everyone else.