I’ve tried to do some googling with little luck, but the comics have always called Jughead a “woman hater,” but rarely to mean “misogynist” - just as if it’s a commonly-known but rare personality trait where a man isn’t interested in dating women. (This comic is from 1951 or so, but I think the term stuck around until women’s lib.) I have to wonder if it’s the same thing as “confirmed bachelor” or if it didn’t have the same connotations.
In general in these 50′s comics, Jug is occasionally emasculated for a gag, but so are the other boys. (As an example, within only a few volumes from each other, Jughead was tricked into wheeling a baby carriage around in public... and so was Archie in a separate story.) Jughead does seem maybe less concerned about looking masculine than the other boys, but the comics aren’t afraid of throwing around the “sissy” insult, and Jughead never gets called that.
His existence as a woman-hater isn’t the joke, but can be used to set up jokes and is assumed to be understood by the reader without explanation. Some of the earlier comics (although they insisted they were clean and fun for the whole family) weren’t afraid of the occasional “adult” joke. Seduction of the Innocent didn’t come out until ‘54, so maybe the kibosh was put on those jokes pretty soon after this came out. But again, the “woman hater” term stuck around for a long long time.