2. Four generations under one roof fought with Dai Tu once, when Naruto was born, Dai Tu stripped Kyubi no Youko from Uzumaki Kushina's body. When four generations went after Kyubi no Youko's seal, the result was that Dai Tu slipped away, and they all cried when they saw the four generations. It's not bad to bring soil. Only after seeing Kakashi kill Lin to save his death (people thought he was dead) did he agree to Spot's Eye of the Moon project and create a world with Lin. Therefore, no matter from the strength or emotion, he can't compare with the four generations. It is Kakashi who hates the soil and still has feelings for four generations under one roof.
Three or four generations can't beat Uchihiro Shoko Asahara 100%.
4. The road of ninja, the personality is distorted, but no matter how distorted, the strength is still there. The four generations inside are so timid, but they will always save their lives. The more timid they are, the greater their will to save their lives. Therefore, it is still possible for the four generations to really fight because of the strength gap.