Apparently Hanson says the "Spartans trained their soldiers to be homosexuals" thing is a myth. He's debunking this view.
Right-—but he is not making it clear that Greeks never “thought” in the terms of “homosexual” or “bisexual”.
How you use words is essential in understanding concepts-—and vocabulary/concept on “homosexuality” was literally changed by a group in the late 1800’s who wanted to change “perceptions” on the widespread activity of pederasty-—because Christianity was so successful in making man/boy sex “evil”. People like John Maynard Keynes/Wittgenstein were not that rare-—nor were they really “shunned” by the elites, although Keynes was having orgies with boys and everyone knew it.
It was only in terms of “erastes-eromenos” which was considered normal for the Greeks and Romans. They never for a minute, thought that marriage/procreation wasn’t essential to the survival of the City-State. The “thought” of homosexual, never existed.
It was actually Kinsey who stated that sex was “fluid” and anything could be made into an “object” of desire—if done at a young enough age and the elimination of Christian morality which he and all Postmoderns reviled because they thought it destroyed “freedom”. Normalization/habituation of sexual practices was a huge determinate in the practice/customs of the people.