The first and most important thing to say about James Gunn's Superman is that there's a really cute superdog, Krypto. Like Superman himself, he's fundamentally good at heart, but sometimes struggles to behave. What if your loveable-but-not-particularly-well-trained pooch had super strength and the ability to fly? It's cute. If you like the idea of a sidekick super pet, you'll probably like this movie.
But since the conversation around the movie has shifted to its right-wing critics, who are upset that Gunn described Superman as an "immigrant," let's take a step back.
Imagine, for a moment, that a superhero actually existed in something like the real world, and that comic scenarios—giant monsters attacking cities, super-powered fist fights above major metros, alien invasions, and so forth—were a regular part of our lives. It is impossible to imagine such scenarios without immediately understanding that they would be viewed as political events, with political consequences. If guys in capes were knocking down tall buildings with any sort of frequency, the government would surely have something to say.