Honestly your whole argument is very reminiscent of people in the early 2000s using the word “gay” synonymously with “bad” and insisting it’s not only inoffensive to gay people but that anyone who thinks otherwise is the real homophobe.
The whole “big/small dick energy” things is inherently rooted in body shaming for reasons that have already been pointed out. It doesn’t matter that you didn’t mean it in that way or that you’re trying to flip the script by saying your energy doesn’t necessarily reflect or corporate to your penis size.