Your answer is obviously the truth. Lesbians are more likely to be ‘butch’ and gays are ‘fairies’. Butch more likely to be able to fight.
Talked to a friend who was posted on a base in Iraq. He said eryone knew who was gay or lesbian, but it was not normally an issue. BUT, some of the lesbian women would really give straight women the eyeball in the showers, making the straight women quite uncomfortable. Heard some even talked about what they saw to some men. Very weird and just wrong. Maybe straight women are less likely to beat the snot out of a creepy woman, than straight guys, so maybe intimidation is more of a problem with women?