It's true that it's much stronger against men these days, but the earlier point -- that, in a number of ancient societies, male/male sex seems to have been acceptable (at least under some circumstances) whereas female/female sex was either taboo or simply not discussed -- is also true.

There are a few problems with this in the Greco-Roman case...one is that it's not so much that lesbianism was taboo as that we simply don't know much about its status at all...and one is that, although male social power certainly translated into greater sexual freedom, women had very different legal and social niches in Greece and Rome, so the power/chattel arguments in those societies are different. But I do buy the basic point that societies which chattelize women are likely to want to control their sexuality as well.