Abuse by females is also more likely to go unreported, so the statistic in itself is inaccurate.Can you see how someone could use this same argument that abortion is not a women's rights issues, but a mother issue.
Isn't the access and daily context enough to subjugate someone even if they aren't in that scenario yet/ever? (divorce proceedings, pregnant).
If your concern that more males beat their children, should heterosexual couples get advantage of over gay men in adopting, since gay men expose the child to twice the male violence threat?