You got that right. The actual experience of being a lesbian is not the same as being a hetero guy visualizing how cool it might be to be a lesbian.
Ever go to a lesbian bar? Ever notice how, on average, the girls have a different sort of look from the girls in straight bars? This raises the issue of a difficult truth: Sexual orientation and gender identity are not the same thing, but they are related. If one shifts, the other can too. I've known plenty of folks who, after transitioning, switched to 100% men. How about them pink apples?
As for me, I'm "half gay, half girl" (bisexual crossdresser). I can't date manly men, but I do like tall, smooth, and pretty guys. Also I can't date girly girls. They have to be sort of tomboyish. My "either/or" sexuality is a mirror of my "either/or" gender, and I think that's the truest equilibrium I may ever find on the spectrum. Inside and out.