Attendees at a cat convention in California showed their support for Vice President Kamala Harris while embracing being “childless cat” ladies, the Los Angeles Times reported. Vice presidential nominee J.D. Vance mocked Democratic women in a resurfaced video from 2021, referring to them as “childless cat ladies” during an interview on “Tucker Carlson Tonight.” Apparel seen at CatCon in Pasadena over the weekend appeared to show support for Harris and make reference to the remark, according to the Los Angeles Times. “You’re talking about me, this is who I am: I’m child-free by choice, I have ca…