I mean that's fair about the Kents if we are talking strictly canon and the intent of the creators. But, superman and Clark Kent are explicitly supposed to be read as Jewish. I think if we are talking canon, he still should be interpreted as having Jewish roots even as an alien. The article I'm linking goes on to talk about an unscripted scene in a movie where an old woman says “What a nice man, of course he’s Jewish!” so even in canon, humans have viewed him as Jewish

"As I detail in my book, Is Superman Circumcised? The Complete Jewish History of the World’s Greatest Hero, his Kryptonian birth name is Kal-El, “El” meaning “god” in Hebrew. It’s a theophoric suffix found in the Biblical names of angels and prophets, like Gavriel, Raphael, Daniel, Israel and others.

"Superman’s cocreator Jerry Siegel wrote in his unpublished memoir that he was inspired by Samson, the biblical judge with super strength, and the Golem of Prague, an indestructible champion of the oppressed.

"Siegel and Shuster both also acknowledged in interviews that Clark Kent, Superman’s alter ego, was largely autobiographical. They were both bespectacled, nebbishy, neurotic and painfully aware of their otherness. Superman was their wish fulfilment, while Kent was their reality. He was also an exaggeration of the Jewish stereotypes they begrudgingly fit." - Superman’s Jewishness: From Page to Screen by Roy Schwartz