For a while I would wonder why people would wimpify Kyle and would be shocked that people didn’t wimpify Stan because of his more passive, gentle, and quiet nature. You can make the argument that people wimpify Kyle instead of Stan because he’s Jewish because unfortunately that’s true because tons of Jewish characters are one-dimensional weak and wimpy nerds.
But now I just realized that if Kyle wasn’t Jewish and kept his more outspoken, passionate, and sometimes controlling personality and was the sporty kid of the group (not that Kyle isn’t good at sports in canon, he clearly is), then people wouldn’t wimpify him and instead make him more dominant. But if Stan kept his gentler, more phlegmatic personality but was more nerdy and bookish, then people would definitely wimpify him instead of Kyle.
