Really? I think it's leaning more towards hetero narusasu given the fact that both kids take their looks from their fathers and have none from their mothers. but yeah, funny how people already ship this pairing despite the 0 implications yet when NS was introduced it's ignored lol. Logic 
I find that peculiar as well. Their logic concerning NaruSaku's abusive spouse undertones and non-reciprocal nature can be applied to the spawn as well.
For one thing, the female spawn is a shadower who seems to have no qualms in violating the personal life and daily activities of a stranger for their own selfish interests because they're too incompetent to grasp the differences in mindset between two sexes on their own without harassing them.
This is a creature which I suspect has inherited the seed giver's arrogance and lack of regard for the authority and opinion of others. Were they to pushed into a relationship with the Hinata spawn, no matter its misgivings or opinions, the female spawn would assert its totalitarian will over the male spawn because it believes its opinions and will to be the more sensible outlook while they look down upon the foolishness of a clown who loafs about getting into trouble because its own seed giver is too much of a scumbag to pay more attention. If necessary, I suspect it would resort to physical trauma in order to maintain said authority.
Isn't such a dynamic the very thing which nH fans were denouncing as being unhealthy for Naruto - that he deserved someone who needn't use violence in a relationship that's supposed to be mutually loving and respectful which both parties are capable of reaching a consensus on issues without thought of such extreme measures?
The second issue to supporting a relationship between these two creatures is the indifference of the male party. Its brazen-minded nature and predisposition to act in a rebellious fashion reflects Naruto's own childhood nature when he was shunned and discriminated against by people. These stunts are the manifestation of years of neglect. They're a cry for acknowledgement. What did Naruto once claim was his reasoning for liking Sakura? Acknowledgement.
Now tell me, what would be the impetus for the Hinata spawn becoming infatuated with the Sasuke spawn? It is, after all, a carbon copy of Naruto right down to the annoying whiskers and inherited persona of being an unruly outsider seeking attention from another. But unlike Sakura, who was born in a family of modest roots with average ranking parents, the female spawn holds the prestige of being partially descended from the highly respected Uchiha Clan. Its bearer also carries some renown of her own as the most advanced medic of Konoha who inherited the power and will of a Sannin.
Sasuke's spawn is a far cry from the timid girl who shed tears all of the time and hid her appearance because of what others thought of her forehead.
The spawn is presumably intelligent - a top of the class prodigy with the potential of the Uchiha. There should be entire groups of people flocking to become part of the Sasuke spawn's mindless fanbase. Moreover, it doesn't appear to have the same flaws with its appearance as its bearer did. A lack of self-esteem and disdain from others is not this thing's problems.
We must also consider what few conflicting elements that separate the Hinata spawn from its seed giver. Naruto grew up as an orphaned child with no one to support or care for him beyond whatever government aid is provided to children in need. His antics extended to the entire village whom he wished to earn the respect and acknowledgement from.
Contrast the above with the Hinata's spawn own predicament. A being that was born in the household of an Hokage with all of the wealth that the position can give coupled with whatever money is brought in from the Hyuga household. Both parents are alive and presumably active in their relationship. It has a fellow mutant that presumably loves it. The only issue appears to come from the seed giver neglecting its family by substituting them for work. Rather than abide by the advice of his own mother, the seed giver prefers to indulge in the sins of unhealthy eating while playing on some silly electronic instead of making time for his family. This lack of a paternal role model has caused the spawn to feel emotionally neglected. So it acts out with outrageous stunts to get the attention of its seed giver.
You can see the discrepancy between Naruto and the spawn now, yes? The latter's intended target for attention isn't the entire village (at least not directly), its interests lie in pulling the father out from behind his desk and seeing him. What the Sasuke spawn does in its spare time isn't a concern for the male spawn. The Hinata spawn's interests don't lie with the village, only in the Hokage. That spark of life which gave Naruto the attachment and will to pursue Sakura isn't there in the male spawn because the female spawn doesn't need to put themselves out there for attention. The girl was born with a silver spoon in her mouth.
We can see how the male spawn thought of the female spawn, complete and utter disinterest. No hint of admiration, or warmth from it. It didn't even have enough interest to look at or acknowledge the female spawn. This so called "relationship" between them doesn't exist whatsoever, and given these already mentioned qualities that they like to decry NaruSaku for having, they would become hypocrites in supporting such a relationship.