Kinsey broke it down by things like "incidentally does gay stuff but doesn't seek it out", because like there are people who would shrug and be like " a blowjob is a blowjob" if someone offered, but would never ask, or would make out with dudes at parties (hi!) But has no interest beyond that. It's a lot more nuanced that just throwing people in to one of three buckets and calling it a day. Iirc about half of men and thirty percent of women showed some degree of arousal to homosexual content. Idk if that still holds true in more modern studies.