Many men, and most women, are quite sensible and accepting.
But in both genders, there are gradations of homophobia, from the nasty, ranty, violent kind, to the people who would do some low-key illegal discrimination ( in countries where that's applicable ), to people are a bit so-so, to people who quite like a few gay friends, to people who think it's a really big deal that everyone has to be fully accepting, and/or out, and attend Pride marches, and so on.
So, overall I think the answer is "women are more accepting", of both gays and lesbians, but it's much more complicated than that, really ...
I'm interested why the opening poster thinks women are more homophobic. A few of them can be, as I say, but you can't judge a whole gender by a few bad examples. Some people are stupid idiots ... it would be strange to put that down to something as simple as gender ...