JD Vance didn't just go after Kamala Harris as a "childless cat lady." At a 2021 event, he said he got bad press because most journalists are "unhappy," "miserable," and "angry" due to the fact they're "childless adults."

https://www.motherjones.com/politics/2024/07/jd-vance-childless-adults-media/

J.D. Vance says he gets bad press because most journalists are “childless adults”

The GOP veep candidate has a thing about people who are not parents.

Mother Jones
@DavidCorn
I'd guess some psychologists would like to have some time with Vance.
@DavidCorn i have never seen a man with so many daddy issues.
@DavidCorn I'm not sure that the incel, couch loving crowd is going to provide enough support for JD, or whatever is name still is, and #DonOLDTrump. Best approach for us is #VoteBlue #KamalaHarris2024