You've read rather a lot into that single sentence.
You haven't said anything that contradicts my statement that if men want to dress flamboyantly they can (and a few do).
If a man wore an emerald green velvet suit with long hair and heeled boots (very 60s) people would stare.
That doesn't mean that they couldn't wear such clothes, and some men might like the attention.
Most people conform to the social norms of their time/place. Obviously. Most people don't want to be stared at. Obviously.
My comparison was to different times or places in which people could face real penalties such as being arrested for not conforming. This was in response to another poster suggesting that what people wear now is all due to one person who lived 200 years ago. Times change.
To suggest that my comment indicates that I don't understand "intellectual history, the power of societal attitudes and conformism" is absurd.