Well, apparently the Humane Society of the United States disagrees with you, guys. (So would the Society for Prevention of Cruelty to Serial Killers and Rapists, most likely   ;-)

Gender Differences in the Perpetration of Cruelty toward Animals

...Such analysis shows that males tend to be greatly over-represented in the most violent and intentional forms of animal cruelty, generally equally represented in cases of neglect and significantly under-represented in cases of animal hoarding....