look at my added part as well
First of all the Databooks hold more credit then assumptions via what if scenarios from either side
Gentle Fist has internal damaging charactertistics and the byakugan's sight abilties is the CES worst enemy
take out the whole sealing her network thing if you want (which isn't true) and you still have air palms, rotation, chakra sight, Internal damage (which she could heal from).
The Gentle Fist at prime can counter all CES moves.... the byakugan can predict CES moves.... and then there is the over prime Gentle Fist moves used by Kaguya
and Lee using the other Gates is a threat not only 8Gs
90% of your posts boil down to worthless platitudes that aren't backed up in any meaningful way by the manga. Who gives a shit who the Hyūga are descended from? They, like the Uchiha, were by and large weaklings compared to the real players. They were only ever impressive to fodders.
The internal logic of the manga clearly demonstrates that a secondary chakra source can undo the effects of the Gentle Fists. There is no credible evidence to suggest it has to be bijū chakra specifically.
Neji hit Naruto with his technique and sealed off his chakra, but was unaware of the fact that Naruto had a secondary source. The same would happen with Sakura, whose sealed chakra is a secondary source.
That doesn't really matter though because Hinata would never get that far. She would, at most, get a a blow or two in before being blasted the fuck out by a single counter.
The Gentle Fist ain't got shit on CES because it has no feats to even make it comparable. It looks cooler, that's all it's got going for it. Air palms and internal damage ain't going to do shit when Sakura can shrug that off like a bug bites and heal any damage within seconds.
The Kaiten is a defensive maneuvre that works best against projectiles and multiple opponents. It's worthless against Sakura who can rearrange the landscape with a single punch and destroy the footing required for it.
The Byakūgan can't predict shit. It can see chakra. And what of it? They're still not going to be fast enough to do anything about it.
Lee ain't a real threat until he learns how to use all of the gates. Asa Kujaku and Hirudora ain't going to hurt Sakura using Byakugō, nor will he have comparative strength if we go by feats. He'll have a speed advantage but Sakura will only need one hit to seriously hurt him if not outright kill him.