Going on a tangent here, but one other reason for men’s gymnastics in the USA being so lower in the psyche is actually the 1980 Olympic boycott.
At the time, one of the best men’s gymnasts in the world was an American named Kurt Thomas. In 1979, he won six medals at world championships (three of them gold), something that wasn’t done by an American again until Biles.
I believe that if the Moscow Olympics had not been boycotted, Kurt Thomas may well have gone to Moscow, won several gold medals on Russian soil in the middle of the Cold War, and inspired more men to go into men’s gymnastics.
However, this alternate timeline also presumably wouldn’t have had Gymkata (a movie in which Kurt Thomas, having turned professional and thus no longer eligible for the Olympics at the time, played a secret agent who uses a form of gymnastics-based martial arts). So call it a push.
I feel like not revealing possible conflict of interest is pretty big procedural issue but I’m not a lawyer, much less a lawyer of this type of stuff.