The Catholic Church does not allow women to be priests, so no, a woman feminist can’t be frum.
Frum is a Galach, a Yid is erlich!
Now if you ask “can a woman be an erlich yid”, if the model is Rebbetzen Chava Bachrach, Jungreis, or Liebowitz, then the answer is certainly yes. If the model is Rabbi Sally Priesand or Hillary Rodham, then the answer is certainly no.