60-40 makes sense to me
I see sexual orientation (gay-bi-straight) as a spectrum, where 0 is one hundred percent gay and 100 is one hundred percent straight. everyone is between 1 and 99 imo, with most people (the stright people) around 85-99 and gay people usually around 1-30. everyone is technically bisexual, but whichever label they fit depends on vaguely where they fall on the spectrum.
obviously there are asexual/pansexual people who don't fit on there. But the majorioty of people do.