You're wrong. They're girls wearing bikinis. There's nothing inappropriate about it.

It's only inappropriate to him because he finds it too revealing. He finds it overly sexualized and thus inappropriate.

But that's because he is the one sexualizing normal ass girls wearing normal ass bikinis on a normal ass beach deeming it inappropriate despite it being extremely standard and expected.

For example someone like the Taliban force women to cover themselves up with head coverings and burkas and hijabs and who knows what. That is because they are sexualizing seeing a woman's flesh. In the West it's just some chick wearing a tank top on a hot day. In Afghanistan it's tantamount to someone walking around topless luring all the men with their sexiness. Because men who see a woman's bare neck, shoulders, and cleavage sexualized it.