I really pity anyone past their teenage years who is still so self-conscious, insecure, and swayed by (their inaccurate perception of) 'public opinion' or 'peer pressure', that they allow it to dictate to them something as basic as whether they dress appropriately for a given activity.
Do you choose to ignore the fact that pro cyclists wear team kit, not jeans and a t-shirt?
Or that millions of amateur cyclists from all different walks of life, wear cycling-specific clothing, because there is a practical, functional reason for it?
This is Mark Cavendish and his wife Peta. He's a big name on the World Tour, one of the top sprinters in the world, and for his day job he wears 'spandex'. Considering how hot his wife is, and the fact that they have kids together, I'm fairly well convinced *she* doesn't think he's gay, and it's no stretch of the imagination at all to see that nobody else thinks he's gay -- especially his competitors, who have lost races to him in the past.
(You), on the other hand, are a Nobody, likely aren't even dating anyone (let alone someone as hot as his wife), yet you're *so concerned* about wearing cycling-specific clothing that you have to lose your shit on an anonymous Japanese imageboard over the mere *idea* of it?
Don't you think you're more than a little ridiculous, acting that way? Ironically, more ridiculous than you're worrying about looking wearing spandex?
(You) should be ashamed of yourself for being so ridiculous.