I just don't imagine a dude who spent 20 years thrusting spears near the mediterranean as very adaptable or imaginative. They'd spend the first week in the future in shock.
They also thrust their "spears" into their battle-brothers
Greek soldiers were SUPER GAY.
What I'm saying is -- If a lost hoplite ever found themselves in the 21st century, alllllll you'd need to do. Is point them to the nearest gym. They'd bond with the local queer gymbros and IMMEDIATELY feel right at home.
One of them is only known to history by his literal wrestler alias, because he was a wrestler before he became a philosopher.
Greek philosophers would be more perturbed by the fact that we don't have slavery (/DO have automaton slaves for a lot of jobs but DON'T spend 99% of the day fucking around, and instead just keep producing more and more useless shit) than anything related to our jokes and memes.