That's not who Oden is. Basically any leader in this series would've acted like that, when he returned to his homeland.
He wanted to solve the matter alone, since he
A) Had no idea anyone even close to his gigantic power was present in Wano (Kaido).
B) Felt responsible for whatever happened.
C) Never accepted help in private matters (his downfall and his one major difference compared to Luffy). Especially not outsider help, who in his eyes have nothing to do with Wano's problems.
He wanted to solve the matter alone, since he
A) Had no idea anyone even close to his gigantic power was present in Wano (Kaido).
B) Felt responsible for whatever happened.
C) Never accepted help in private matters (his downfall and his one major difference compared to Luffy). Especially not outsider help, who in his eyes have nothing to do with Wano's problems.
The Yonko even says it himself - things might have gone in Oden’s favor if he hadn’t blindly trusted the word of a known con man in Orochi and gathered the samurai to rebel. Hell, he could have done the whole Idiot Lord bit and fomented the resistance in secret...if the townspeople heard whispers of his true motives, public perception wouldn’t have turned on him so harshly.
Wherever you land on this subject, it’s way too complex for either side to fully encompass all the pros and cons. My problem is a perceived lack of picking one’s battles after Oden returned to Wano...tough choices have to be made, and it seems he did the easiest one with a supposedly high payoff (as long as Orochi actually kept his word, don’t know that we received confirmation of that yet). Then, when he realized it wasn’t the right move, shit was already in motion towards his demise.