Not to make it seem like an obvious question, but does anyone think that the Omnicron kids are considered half-siblings? Besides the obvious appearance-wise, it makes sense in a way for Omnicron to have a partner/mate for each element for a possible heir but he also always wants to be on top of the food chain, so after he has the kid he just...kills the mom? Eat them?? Maybe like a reverse mantis thing, but who knows...Since there's zero mention about any mother/mother-figure in their lives, I'll just leave it at that.

And even if it's a sibling thing for every one of them to be at each other's throats with insults or disagreements, none of them seem relatively close to one another if they were true-blooded siblings (besides Nara and Grunda, but they literally had a millennium of wartime to get cordial). The only thing they have in common is their opinions on humans (good or bad) and how they acclimate to their new lives outside of Omnicron or being ghosts in Extinction. Besides, if the half thing is relatively true, then it'll be an extremely sore subject for all of them that they just never bother to bring it up; it's just a fact of life that'll never change or get fixed anytime soon as long as they're the strongest of them all.

That being said, the only one that will have a problem with it (of course) would be Metta; since he's considered a true Normal type and also inherited Omnicron's ability to control all other element types (main moveset). But with him being the youngest and a cringe-fail bowling ball, if he's constantly rubbing it in the other's faces then it's a given why all his older siblings collectively hate the youngest. I mean, if he's practically written out of the narrative in N:E (or the rest of the fam refuse to mention him), then that's saying something, besides him indirectly causing everything terrible in N:E, that is.