EXACTLY. I don't have a problem with women. I identify as 'mostly straight' because I very occasionally fancy a woman but have never done anything about it.
The trouble with f/f is generally that I can't identify with the characters. On the other hand, reading The Syndicate, I could identify with Allard quite easily. OK so the plumbing's different, but so what? The BRAIN was the same. Other women are, largely, an alien species to me.