They've made six X-Men films and four spinoffs, and yet so little of what makes X-Men the best comics franchise of all time has ever made it to the big screen.
An important contrast with the relative privilege the X-Men enjoy, as well as a rejection of Charles Xavier's belief that mutants should assimilate into human society.
The rivalry of Callisto and Storm in the '80s goes beyond a simple "hero vs. villain" dynamic, and pushes Storm to learn lessons from Callisto that help her become a better and more proactive leader for mutants.
Storm appears in five X-Men movies and you never get even a hint of her fluid sexuality.
Forge, the man who can invent anything he imagines, but has very little imagination. What a perfect metaphor for the type of boyfriend who has all the potential in the world, but no initiative to realize any of it.
Mystique and Destiny were portrayed as a long-term lesbian couple through most of the '80s, even if writer Chris Claremont wasn't allowed to explicitly state that on page at the time. Of course, this relationship ends in tragedy, and Mystique never fully recovers from the loss.
The X-Men liberate Genosha, which is an important step in the group's evolution away from supporting the status quo and towards becoming true revolutionaries.
Well, you see, Bishop is a mutant policeman from the future and...
Hint: That's not his real face.
Oh, and he's also a Victorian dandy!
She is pure evil and utterly terrifying.
Magneto may be Xavier's greatest rival, but Farouk is his ultimate nemesis.
Scott and Emma's relationship is arguably the most complex of all X-romances, and pushes Emma further into the role of being hero after years of serving as the White Queen of the Hellfire Club while complicating Scott's morality and nudging him towards becoming a political radical.
This is not a joke; the X-Men play baseball all the time.