Not speaking for Molly, but I don't see how either of those things follow from what she said, trisher.
If I'm not mistaken, isn't it you who has posted that feminists should always support other women, and we who have disagreed?
As Molly says, one can support the rights of other groups regardless of one's feminism, but because of being decent. If a woman were discriminating against a man because of his race, or his disability, a decent person would speak or act against it, depending on the specifics. If a particular man discriminated against a particular woman, or vice versa, a decent person should speak or act against it.
If, on the other hand, the actions of a man or group of men are detrimental to the well-being of women, a feminist will speak or act against that - and so, IMO, should a decent man.
Men who offend sexually are acting in a way which is massively detrimental to women - the ones they attack, and the safety, freedom and mental well-being of the rest of us. If they then compound that by pretending to be women in order to inflict themselves on vulnerable women in jail, they really can't expect women to give a fig for their wants or needs, and no feminist worth her salt would begin to do so.