In response to this thread http://narutobase.net/forums/showthr...yomi+overrated
Can Itachi'stsukuyomi be broken by a perfect Jinjuriki?
Simply put the 8 tails is not fast enough to break bee out of itachi's tsukuyomi. Ttachi was able to keep bee in genjutsu for at least a couple of seconds before being broke out, the hahcibi was not fast enough to break itachi's genjutsu meaning bee was not able to relise he was fighting an illusion so Itachi could succesfully escape bee's tentacle and disprirse into crows. The time frame in which all this happend was longer than an instant. so if bee gets hit with tsukuyomi "it's over".
Can tsukuyomi kill a man?
Notice I highlighted the word "didn't" kakashi said why didn't he kill me, not why Doesn't he kill me.
so we know kakashi is talking about his time inside the illusion and not the aftermath of it. The case is that itachi spared kakshis life here and he can probably kill people with a mind that is = or weaker than kakshis.