● Leftist Job: Let’s start with the obvious. Superman is a journalist and most journalists are leftists. In fact, not only is journalism the bastion of leftist ideologues, but it’s also one of the few places where private sector unions still thrive.
Compare that to Batman, who is a businessman.
● Leftist Villains: The most common villains in Superman are rich businessmen, evil corporations and rogue military generals. Basically, the leftist anti-capitalist pantheon. Batman’s villains are losers who were “misunderstood” and decided to make the rest of us suffer as punishment for their own miserable lives. Those are usually the heroes in leftist movies.
● Impulse Driven: Superman is impulse driven. Superman has a superpower he could use to help the world in many ways. But rather than doing the conservative thing and plotting out how to make the world a better place, he uses his power to react to the moment. And his solutions are always short-term solutions without any thought to the long-term messages being sent.
Batman... Batman is all about long-term thinking. Everything he builds, everything he plans is based on needs he thinks he will have in the future. He is always preparing for projected problems.
● Favoritism: When Superman acts on impulse, notice that he favors those closest to him. Indeed, he spends his days trying to stop any petty crime that afflicts his friends, but rarely worries about the larger world he doesn’t see. And the few times he’s actually tried to make the world better, he’s done the short-sighted liberal thing like push for nuclear disarmament... as if disarming good guys will make the world safer.
● Dependence: Speaking of disarming the good guys, Superman breeds dependence. Nothing divides liberal and conservative thinking more clearly than the “give a man a fish v. teach a man to fish” dichotomy. Liberals think it helps people to take care of their needs, conservatives know you need to teach them to be self-reliant. Superman, like all liberals, believes in doing things for people. He’s never once encouraged self-help. He’s never once helped the police or military learn to protect the citizenship on their own.
Batman, on the other hand, is constantly working to help the police and the public be better able to stand up for themselves. In fact, think of how often Batman gives the police the final clue they need and then leaves them to round up the bad guys. Superman never does that.
● Feminist: Superman and Lois Lane have a nearly perfect liberal feminist relationship. She’s the hard charging “bossy” working professional. He meekly takes orders from her and stands there like a eunuch as she heaps abuse upon him. He even pathetically waits on her hand as she openly displays a crush on another man (ironically his alter ego).
● Shame?: Finally, think The Incredibles. There is an air in Superman that being special is a bad thing. Superman hides his super powers behind a pathetically meek alter ego. He hides from the press as much as possible and only appears when needed. And in Superman II, he even gives up his super powers just so he can get married... something no one asked him to do.
Batman is different. He hides his identity for his own safety, but he still uses both personas to fight evil. He doesn’t downplay his own skills or abilities.
In The Incredibles, society decided that it was wrong to demonstrate that you were better at something than others. That is the socialist worldview. Superman implicitly shares it. Batman rejects it. Total liberal.