Is Krypton really a planet that Superman doesn't know? I mean, in most every iteration of the character he eventually gets to go to Krypton and to meet and interact with his birth parents. Movie Superman, for example, spent a little more than a decade in the Fortress of Solitude learning about Krypton from a simulacrum of Jor-El, one he seemed to considered much more than a mere computer program. I can't help but think that Krypton and his birth family are more than mere abstractions for him, that they're real flesh and blood. he's John and Martha Kent's son, but he's also Jor-El and Lara's too. And I think that's why we can't just write off Kal-El the Last Son of Krypton any more than we can Superman the Superhero or Clark Kent the mild-mannered reporter from Smallville. Each is an essential component of the whole.
But is being the Last Son of Krypton the driving force behind Superman's feelings of alienation? A little, but I think a lot of it is something else. I don't think Superman feels alone because he's the only Kryptonian but rather, because of what being Kryptonian means on Earth: that he's kinda, sorta a god. He's the ultimate go-to-guy, the saviour who's always on call, the man who sacrifices his normal life so that everybody else can have their normal life. I think that not getting to have a regular life is what makes Superman feels somewhat out of touch from regular people.
The problem with this sort of thing is that it too easily and too often gets dealth with badly and, quickly comes across as mopey. Dealt with right and it's grand and tragic and just plain awesome.
But is being the Last Son of Krypton the driving force behind Superman's feelings of alienation? A little, but I think a lot of it is something else. I don't think Superman feels alone because he's the only Kryptonian but rather, because of what being Kryptonian means on Earth: that he's kinda, sorta a god. He's the ultimate go-to-guy, the saviour who's always on call, the man who sacrifices his normal life so that everybody else can have their normal life. I think that not getting to have a regular life is what makes Superman feels somewhat out of touch from regular people.
The problem with this sort of thing is that it too easily and too often gets dealth with badly and, quickly comes across as mopey. Dealt with right and it's grand and tragic and just plain awesome.
I just want to add that when Superman gets to know about his alien heritage, interacts with his biological parents, and learns why they had to send him away, he bonds with them in some way.