>>159778
Note that Superman never originally fought in World War II. Those covers from the era that imply he did are non-canon (covers are almost never canon). In-universe, he wanted to enlist, but he was so excited he accidentally x-rayed through his eye-test-chart and read the one in the next room, so they thought he was blind as a bat and declared him unfit for service. He did fight threats on the home front, though. Many spies and fifth columnists and all that. Decades later, in the '80s, they did a series called All-Star Squadron where they said FDR secretly recruited basically all active American superheroes at the time to a secret group to fight the war, but they were limited because Hitler had The Spear of Destiny (the spear Longinus used to stab Jesus on the cross) which had reality-warping abilities, so the All-Star Squadron couldn't just fly in and heat-vision Hitler's head off. However, note that this was an '80s retcon, well after the original creators were gone. Also note that it doesn't apply to the main Superman, as most comics from before the mid-1950s are said to take place on the alternate universe of Earth-Two, and All-Star Squadron was deliberately meant to take place on Earth-Two, while most comics from the 1950s to now take place in a different universe (with varying names, Earth-One, New Earth, Earth-0, Earth 0, Prime Earth). The "main" version of Superman and most other characters are thus too young to have fought in World War II.
Also note that Harley Quinn was created for Batman: The Animated Series in 1992, and frankly, they probably figured she was jewish because of her super annoying accent, which is basically the only character trait she began with. She was never explicitly jewish in the cartoon, but of course I'm sure modern shit, like the pic you posted, makes something annoying out of it. Also note she's a villain, but again, modern comics are shit and keep making her not just a sometimes sympathetic villain, but more of an anti-hero, which is fucking stupid considering all the heinous things she's done.
I don't know who that third pic is but it looks like some modern shit. I almost thought it was Raven from Teen Titans for a second, but no. But I thought it might be since Raven is canon jewish. Of course she's also half demon, and if anything knows that Trigon is real for sure, so her religion should be the Brotherhood of Blood, but then of course she wouldn't want to worship Trigon even if she knows he is a god and is real. Which begins the line of thought regarding how just being a "god" (whatever that means) does not necessarily one should be treated better than anyone else.
>>159780
>>159782
Big G God does exist in both Marvel and DC, but other characters blur the line between mortal and god so much that some characters end up feeling the distinction is moot. There might be an omnipotent prime-mover, but he is just one more sufficiently advanced alien among millions. Should we respect him more just because he's more powerful? Should one respect Superman more just because he's more powerful than most? Superman would say no. Superman, however, is canon Methodist and does worship God, though he keeps his religion as a private and personal matter for him and his family, and especially wouldn't mention it in uniform. Batman also sometimes says things leaning toward atheism but the overall trend seems to be that he actually does believe and worship (and indeed both of these characters have met God before) but his faith is tested due to terrible things he sees and experiences. On the other hand, there are characters like Mr. Terrific, who is a canon atheist, despite being on the Justice Society, a team primarily consisting of magic users, including The Spectre, who is literally God's angel of death (and his nemesis is Eclipso, who is literally the angel of death who killed all of the firstborn of Egypt in Exodus). Mr. Terrific figures that Spectre has advanced psychokinetic powers, which may or may not be granted by an even more powerful guy with more powerful psychic abilities. If Mr. Mxyzptlk isn't a god, then why should anyone consider a guy who, frankly, is only marginally more powerful than him, with a very similar powerset, to be THE God?
The other factor is that once you get multiple pantheons, with many evil gods, it again brings into question what a god is. Darkseid is a god, and he can shoot eye lasers that make it so the person they hit never existed (but they don't work on Superman because God thinks Superman is too important), and he can also use the same eye lasers to make things always have existed that never did before. Or on the other end of the spectrum, you have Lightray, from the same pantheon, who is... uh... pretty fast, I guess. And can fly. So basically he's a much weaker version of Superman. Or you have Mister Miracle. There are three of them and two are gods, and one of them is a human who became a god. None of them have actual powers. They're just very good escape artists, and the latter two cheat all the time by using advanced super-machines (literal deus ex machina) called Mother Boxes which can teleport them and stuff. But they're gods. So what is a god? Some stories say gods are the embodiment of abstract concepts. In that case, the Justice League may qualify as gods. And indeed there are stories where they become literal gods in the same way the third Mister Miracle did, by replacing the previous one in how well they embody some concept. They replace the Fourth World gods (Darkseid and Lightray and the rest) and become the Fifth World. So okay, Big G God is still more powerful than them, but Mr. Terrific would probably find it hard to worship Batman just because Batman technically became a god for a while. He would then find it just as dumb to worship an alien that happens to be a bit more powerful than him just because he's also called a god.
Note that The Guardians of the Universe (Green Lantern's bosses) recognize godhood as a legal concept, and the death of Orion (Darkseid's biological son) is investigated by their most elite forces as a suspected deicide. They're also treated as similar to gods sometimes, but they're quite clear that they're not, they're just very advanced aliens.