The problem with these fruitcakes isn't their fringe beliefs, but that, as women who claim to be feminists and who claim to be experts on LGBT issues, and have absolutely extreme anti-trans beliefs, they have been consulted, listened to, and have testified before, state and federal legislatures in this country, and their materials and "testimonies" have been used to support anti-trans (I was going to describe them but they are too triggering even to mention) laws and edicts overseas.
Like any hate group, until it is outed as a hate group, right wing media or right wing political groups will continue to use it as a source for justifying hate, while cloaking it in a patina of neutral expertise.