Masculine Genital Preference BIaS: Anyone Else Noticed That Pattern?

I have noticed a recurring pattern in the answers replied whenever someone asks people at queer spaces whether they prefer cock, fingers, toys, pussy, or booty:

Bi women and lesbian women reply a balanced diversity of answers stating their preference, but the majority of bi guys and gay guys answer replying that they prefer a meaty cock.

Anyone knows why does that happen?