Allow me to explain. All of Sonic's feats through power scaling are very inconsistent and contradictory so I'll be looking at actual feats themselves NOT boss battles until necessary.
Starting with the Sonic Rush, both emeralds are merging both parallel worlds because they are in the same plane of existence. This merging scenario is done under specific circumstances and never happens again when it's supposed to happen (it even contradicts Sonic's statement about making sure the events don't happen again). It's never stated that the emeralds by themselves are capable of merging worlds, only stated to create worlds. Eggman says with the power of the sol emeralds he will make a new world.
Doesn't have to be stated that they can do that when it's explicitly shown to be merging the dimensions.
In Sonic Rush 2 the POTS are superior to the Chaos and Sol because it's stronger than their combined might of merging two worlds yet they defeat it and don't even take damage.
What part of "hubris" don't you get? It's more like Eggman overestimated the POTS compared to the Emeralds.
In Sonic Generations both space times are being restored over the entire course of the game and after the boss battle it's unclear what happens, but it's likely that both time lines were restored. However a hypothetical feat like that is only universal+ because each hedgehog could have went to their own dimension and restored it at the same time.
That's a range feat when Cal questioned Sonic having low multiversal range.
Now for the bosses. They're inconsistent of course and I generally disagree with some scaling from bosses even from different fictions. You have all these statements about characters being stronger than one another but they're all thrown out the window because of plot. The Power of the Stars are superior to the emeralds but for some reason Egg Wizard can't even dent the super forms. This is the Same thing in Sonic Forces. Sonic needs help from the OC to beat Infinite. Eggman then uses a death egg robot in battle that actually surpasses infinite but it's defeated. Even the 8-A classic Sonic is able to damage it but he doesn't even scale. Inconsistencies with boss battles aren't new to Sonic which is another reason why I wanted to downgrade Sonic. The only things keeping Sonic at 2-C are assuming the chaos emeralds scale to a situational merging, stupid scaling, hypothetical events and variable tiers.
Do you mean to imply that statements > feats? Because that's not how it works and that is terrible reasoning to suggest that Sonic and co don't scale. If the statements contradict feats of the characters, then the feats will hold more water in gauging their stats.
I really only wanted Super Sonic's tier to be "at least 5-A possibility low 2-C" with the full power of the emeralds, and a 2-B Solaris. I really hate inconsistencies and Sonic can literally just be rated anything at this point. I tried my hardest to look deep into things for a while s all I wanted was a sonic profile that wouldn't be questioned so much.
Sonic is one of the most popular video game franchises out there. A series this popular is bound to get questioned a lot on where they rank and lots of people will disagree with each other. It's unavoidable, and you just have to do your best at making sure your side of the argument is backed by proper facts.
And I should've asked this a long time ago. Why does one set of emeralds scaling to something only two of the emeralds are capable of performing? We really don't know specifically how it works but the power more than likely increases because it's two sets of emeralds. What if it has a set multiplier (although it sounds like I'm taking this too far) and if it's two universes what can possibly be lower than that if it's not low 2-C?
Chaos Emeralds don't have a set multiplier. It multiplies exponentially the more you have.