Tsukuyomi works like any other genjutsu, except the user has a stronger control over the opponent's chakra flow in the brain. Now why did Itachi say it can only be broken by Uchiha blood?? Because Sharingan is the easiest thing to break a genjutsu with. Reason being, the sharingan has a direct relation with the chakra in the brain (as explained by Tobirama), thus allowing the sharingan user to counter the genjutsu by making it easier to interrupt the irregular flow of the chakra in the brain, that was done by the opponent to cast the genjutsu.Tsukuyomi can only be broken by Uchiha blood. Simply raising your chakra to an obscene level isn't breaking him out. :lol:
Interrupting the chakra flow is the key to breaking any genjutsu, except for IT. All genjutsu is broken by interrupting the flow of the chakra. Itachi's Tsukuyomi is no exception. Unless you can provide a scan where its been casted on somebody like the calibar of Hashirama and Madara and Tobirama.. and they failed to get out of it.. you can't. Because Kishimoto picked those specific people who can't get out of the tsukuyomi. None of the people who were caught by Tsukuyomi are known for best chakra control.. or are on Hashirama's level.. So to claim its going to work on somebody like Hashirama.. you're gonna need more proof.
Now you're questioning, whether somebody like Hashirama who possesses chakra on par with Kurama himself, and can crack up the entire room and put pressure on people by simply raising his chakra can break a genjutsu casted by a MS or not??