Real life X-Men: people who’ve gotten real superpowers from genetic mutations
While the X-Men comics and movies are certainly fictional, their basis isn’t too far from the truth. People around the world have mutations in their DNA that give them some kind of benefit, or superpower, that most others don’t have. The abilities range from enhanced vision to super tasting to disease immunity. Many of these genetic conditions are being studied to try and cure related, but opposite, conditions. So in a way, these people really are superheroes.