Why does sesshomaru hate His brother Inuyahsa So Much!!!!!!!

because इनुयाशा is a half demon half human and sesshomaru does not like humans! dur!

Because Inuyasha's only half demon! DUH!

inuyasha's freakin' HALF-DEMON !!!!!!!!

its not just about that. he hates him because his father married a human (he cheated on sesshys mom) . after sesshomaru fond out that InuYasha was born thats when the hate came. he hated father for marrying a human and having a half demon! sesshomaru could not stand humans. when इनुयाशा obtained tetsusaiga things got worse. sesshomaru would try to kill him! but i can tell sesshomaru does not hate him 100%. when इनुयाशा was a full demon in one ep sesshomaru came to see this power. he tried to beat inuyasha. and when इनुयाशा was almost done sesshomaru कहा "no. im finished. there is no use to kill somone who doesnt know who they are या whats going on." या another ep when rin had to find the antidote for jaken who got stung द्वारा narakus bugs. anyways while that sesshomaru was looking for naraku who came across inuyasha. sesshomaru demanded an answer for where naraku was. इनुयाशा had no clue but they started fighting. after a while sesshomaru had the tip of his sword to inuyashas neck. kagome कहा which way he went and he let इनुयाशा freee. plus sesshomaru rescued a human! so sesshomaru mite not hate इनुयाशा 100%