I know the study you mean and you’re misrepresenting it. It asks people who identify as lesbian whether they have experienced domestic abuse at all, and concludes they’re more likely to than straight women.

But remember lesbians often date men before coming out. When asking whether the perpetrator was male or female and separating the data, the stats shifted. Lesbians experienced less DV from their female partners than straight women do from their male ones.

Women are also capable of abuse of course, but a large amount of the DV lesbians received was still from men.