What is your opinion of non sexual nudity and seeing it in the locker room?

For context, I'm barely a millennial that uses the locker room nude. I'm comfortable in my body and have a high self esteem. So I don't feel the need to cover up and hide in a safe space like a locker room. I've been to plenty of spas, beaches, and resorts where same gender nudity and coed nudity is accepted and mandatory in some cases.

I've had multiple verbal negative interactions with a guy in a group of men just because I was naked at my locker resulting in being called a pedophile and gay.

Another instance, a guy in a group had to keep repeatedly talking about my penis size with a derogatory terms since he seen me naked at my locker. I walked around the corner and overheard him body shaming me.