I didn’t say “shameful”, I said distracting. Human sexuality codes us to take an interest in other people. That’s fine in social contexts, of which going to the beach is basically one. But when people are visiting the gym for a task, taking targeted actions to distract them from it is just rude.

It’s also true that some people’s bare bodies are less appealing to look at. (That can include mine! I don’t mind admitting it) You’re setting a standard that can only ever work for attractive people.