I was interested to know what your good reason was to wear them, but it would be a subjective opinion.
The reason cycling may cause ED is that the seat puts constant pressure on the perineum—the area between the genitals and anus. This pressure can harm nerves and temporarily slow blood flow, which causes tingling or numbness in the penis and, eventually, ED.
Which is why men’s bicycle seats are made with a groove or opening in the seat. But again, your ignorance shines through.
Look, I don’t really care if you dislike spandex, for whatever reason, that’s your opinion. But calling them “sissy pants” is just childish and stupid. I guess swimmers wear “sissy pants” too? And long distance ski jumpers? Wrestlers? Football players?