As a counterpoint to other comments here, I didn't like Babylon 5. I gave up in the first season on the episode about religions, where each alien race shows a single religion but then humanity shows an enormous number of them.
Showing planets in sci fi as homogenous is a common trope, but such a simplistic take. This resonated poorly with me as I felt the aliens all behaved exactly like humans as well, to the point where you have stand-ins for Jehovah's witnesses. That episode cemented for me the feeling I had when watching. Babylon 5 is racist against aliens.