Stunning guy. There are definitely clients out there who would happily agree to muscle worship only, but of course it's a much more limited client pool.
I don't understand your arguing age with him. His pics are clear enough and don't suggest massive age shaving if any. From what you described, he did not come across as disrespectful or unreasonable. It sounds like you got frustrated that his boundaries were too limiting for you and decided to get a dig in before blocking.
I would suggest that this guy makes his boundaries more clear on his ad in order to prevent additional interactions like this one.
I would also suggest that if it's clear you aren't a match with a provider, to simply move on.