Sadly, this is not true.
They know a LOT about women and what they want-all of it sterotypical and unattractive.
We all have a dark side, or if you prefer, embodied characteristics that we'd just as soon lose but for those damned pesky genes.
Gay men parody and project the negative half of the female character, and man, they sure do know it.
Part of the gay rights revolution's fabulous success has been to legitimize and to allow straight women to affirm a big part of their dark side.