Proven by the fact that Ieyasu waged the Siege of Osaka immediately after Katsumoto's departure from the Toyotomi camp, as if he had been waiting for this to happen, the Toyotomi had in fact brought destruction on itself by pulling out their last pillar of strength and hope.
そして且元退去にあわせるように家康が大坂の陣を起こし、翌年には豊臣氏を滅ぼしたのを見てもわかるように、豊臣氏は且元という最後の柱石を自ら砕き、自爆してしまったのである。