Let's start with Sairaorg's purpose: to prove that he can go far even with just hus body. I was drawn to him because he reminded me of Might Guy, Rock Lee, or Ikki...but looking back...he was fraud

They were right not to make him the heir (although the way they treated him was awful).

Finally, let's look at Sairaorg's record. Yes, he defeated his younger brother and became the strongest among the Young Pure Blood Devils. Okay, what's next?

Issei was defeating him with his Triaiana, he didn't even need CxC.

There, Sairaorg single-handedly defeated Kiba, Xenovia, or Rossweisse? They completely surpassed him in less than a year.

Even Koneko could easily finish him off with just Shirone Mod.

Sairaorg then relied entirely on Regulus; without him, he couldn't even fight, let alone win any serious battle.

And he tamed Regulus again using Clan Trait, which directly contradicts his intention.

Simply put, Sairaorg couldn't have even tamed Regulus if he hadn't possessed the Vapula Trait (I'll leave aside the absurdity of taming a Longinus).

He might be stronger than his younger brother right now, but Devil gets stronger on his own over time, and eventually when his brother's PoD gets even stronger? What exactly will he do? I'll tell you, he'll rely on Regulus.

As for the issue of him being no different from other Nobles, his own Peerage went to great lengths for his victory, and Corriana practically performed a striptease in front of the underworld to eliminate Issei early.

Issei almost chopped Kuisha's head off, but Sairaorg's only reaction was to laugh it off, ignore them all and lose by his own hand when he could have won instantly thanks to Regulus

Sairaorg can say whatever he wants, but all his actions prove otherwise.