No they would not the fight happened, in the manga and the Hashira needed “extensive” outside help to beat Muzan Rengoku Muichiro and Tengen weren't there because two are dead, and one retired but the 9 Hashira by themselves cannot win.
Yoriichi Tsugikuni was the first Demon Slayer and also the one who invented Breathing Techniques in the first place. Yoriichi was born with the Demon Slayer mark and prowess in swordsmanship. His powers were beyond comparison as he defeated Muzan once and had him on the verge of death until he managed to escape.
Giyu pulls Tanjiro away reminding the latter that Muzan's power is above any of the Upper Demons. Muzan wonders if they can defeat him with just three Hashira, as he declares that Mitsuri and Obanai were killed by Nakime.
and if he fought the demon slayers in his full power he would easily obliterate them keeping this in mind there is absolutely no way that the demon moons could defeat him he would probably crush them all in a matter of minutes.
Yoriichi would be able to defeat every single Hashira on this list without breaking a sweat. Such was his reputation and skill in swordsmanship.
But if we are talking about the human form, then it's a big fat NO, because Tanjiro has just mastered the Sun Breathing whereas Yoriichi is the inventor of it, also he's way more powerful and holds an unfathomable battle intellect, larger than any Demon Slayer in history, so in conclusion, no one is remotely close to ...
As the battle reached its climax, Tanjiro was able to knock the doll's head off and discovered that the mechanical body contained a mysterious sword. Fans of the manga will recognize this sword as the one carried by Yoriichi Tsugikuni himself.
"Based on this analysis, it seems clear that Sukuna has the edge in terms of power and abilities. He is stronger, faster, and more durable than Muzan, and he has a wider range of abilities at his disposal. Additionally, Sukuna's regeneration abilities would make it difficult for Muzan to kill him.
The only thing he's weak to is the sun. That is why he turned other humans into demons and spread his blood so that one of them might find a solution against the sunlight, so he can become truly perfect.
Kokushibo was loyal to Muzan, acting as enforcer to the Twelve Kizuki. In return, Muzan sees him as a business partner, possibly due to his fanatic loyalty to him, being his strongest Demon and because the two were jointly responsible for almost exterminating Sun Breathing.
At the end of the day, none of the Hashira could've defeated Akaza – even though a few of them could've succeeded in decapitating him. Akaza proved himself to be too strong to be dragged into sunlight, meaning there'd be no way for any of the Hashira to kill him.
His skill and overall combat abilities could be compared to that of a Hashira's. That being said, there is absolutely no chance for Tanjiro Kamado to be able to beat Kibutsuji Muzan.
Muzan may be strong, but Madara is on a whole other level. Madara has Sharingan, Rinnegan, and wood-style jutsu, while Muzan just has some fancy demon powers. He could easily read Muzan's moves with Sharingan, then use wood-style jutsu to pin him down.
Muichiro Tokito: The Mist Hashira with a Mysterious Aura
His toughness, concentration, and immense strength make him an unbeatable force, and he is widely regarded as the strongest Demon Slayer in the Corps.
The warrior Muzan feared was a swordsman named Yoriichi Tsugikuni. Yoriichi was the only slayer before Tanjiro who came close to killing Muzan, and the flashback of their fight occurred in Chapter 187.
Tanjiro Kamado
Tanjiro is considered to be Muzan's main nemesis throughout the series.
The only Demon he despises the most is the Upper Rank Two: Doma. It is quite a shocker that the second most potent Demon in the Demon Slayer is not Muzan's favorite.
Muzan's Blood Demon Art is known as “Biokinesis.” It allows him to alter his body and shapeshift at will. Although all demons have this innate ability, Muzan elevates it by modifying his flesh and organs. Biokinesis is also the only reason Muzan has been able to hide from the Demon Slayer Corps for 1000 years.
4 Satoru Gojo Beats Muzan Kibutsuji (Demon Slayer) By Drawing Out Their Battle Until The Sun Rises.
In the past, Gojo asserted that he could defeat Sukuna even if he had consumed his 20 fingers, but things are different this time. Therefore, in our opinion, Sukuna is stronger than Gojo when taking into account his powers and abilities right now.
The two known demons who broke free of Muzan's curse are Tamayo and Nezuko. Tamayo was able to break free of the condemnation when Yoriichi fought Muzan, nearly killing him in the process. During this weakened state, Yoriichi let Tamayo go, free her from Muzan, and free her from the curse.
This is the sword that appeared out of the neck of the doll at the end of Demon Slayer season three's second episode. In the manga Tanjiro has the sword repaired by Haganezuka, who he initially traveled to the Swordsmith Village to find.
So now, Tanjiro, the protagonist of the Demon Slayer series, has access to a sword that belonged to the best swordsman to have ever lived. This sword was in bad condition, but Hotaru Haganezuka took it upon himself to restore the blade to its former glory.
Nezuko's unusual ability can burn her blood and turn it into an explosive flame with her pyrokinesis ability. This is why Tanjiro's sword turned red due to her pink explosive flame that can rend through demons quite easily.