What are 3 reasons why Othello's demise what his own fault?

Insuperiority? Is that even a word... I think "inferiority" would be the word you're looking for there (inferior = not-superior)

The whole point of Othello is his jealousy... He hears a RUMOR that his wife is cheating and goes nuts. It was REALLY EASY to get him to kill her... I'd say lack of trust, insecurity, and jealousy... All MAJOR amounts of them too.

Othello is jealous. Every tragic hero has a tragic flaw, Othello's is jealousy. As Iago calls it, "The green-eyed monster." The thought that Desdemona is unfaithful with Cassio drives Othello mad that he loses sleep, he cannot properly think, he gets epileptic shocks and he commits murder.

I disagree that Othello feels "insuperior." He feels the opposite. He feels that he is so important that what Desdemona did to him, that the dishonour committed to him is unacceptable that Desdemona should be punished, that she should be killed (as well as Cassio). He murders Desdemona, and has Cassio murdered because he feels they dishonoured him, that they wronged him and these actions are based only on assumptions; this goes to show that his honour is so impotant that he will even commit murder even when the crime isn't certain. He thinks he is everything he cannot accept anything against him, not even his wife.

What is "insuperiority"? That's a brand-new word for me! He dies by his own hand--I guess that's his fault. Over-reacted? Cultural concept. Is Harakiri over-reacting? "He who cannot live with honour must die with honour." That's a truism for some people. Most men deposited their honour in their women in Renaissance times--probably a risky practice. He killed the wrong person, that put him another notch down on the honour scale.

Maybe it's the beginning of your thesis statement that has gone wrong: "What factors led to the untimely death of Othello? His tendency to trust men over women? His belief that an unfaithful wife destroys her husbands honour? His failure to care that as a Christian (remember, he was a Christian) he may go to hell for committing suicide? (He preferred honour over redemption, it seems.)

The point is, I don't think it was exactly his fault. He was the person he was, and he lived at the time he lived, and he coincided with that peerless villain Iago--not his fault! Good luck on your paper.

1.. he was JEALOUS of desdemona's relationship with any man.

2.. he was GULLIBLE believing anything his "friend iago said.

3...he did not TRUST his wife enough to not believe the rumors he heard.

those are the main reasons but he also had an inferiority complex when it came to his wife since she was a white female around white males and since he was the only black man the area.

Insuperiority isn't a word! Do you mean insecurity? I also think he was a gullible person!

He was jealous and had no faith in Desdemona's love for him. Way too quick to believe all the bad things Iago fed him.

his jealousy, and bad judge of character, willingness to trust people

mainly jealousy though!!!!

-iago tells othello to beware of 'the green eyed monster'

I think his overpowering jealousy is his major fault, becuse of it he is ready to believe Iago's story about his wife betraying him, without questioning it.