Othello from the beginning Othello made the wrong choices. The first wrong choice Othello made was to give Cassio lieutenant.
Although people would agree that it was not Othello's fault for Desdemona's death and it was all Iago's fault, Othello is guilty because he made quick decisions to immediately act on Iago's manipulations, thus opening turmoil and taking it upon himself to murder Desdemona. Iago is called "honest" by almost everyone in the play; he is treacherous, deceitful, and manipulative. Despite them trusting each other throughout the play, Iago's manipulative tactics triggered this doubt within Othello.
Othello is considered an outsider. He is an outsider who is clever and certain in military matters but is socially insecure. He is mocked by the European society because of his fixed ideas, racial and cultural differences. Within the play, Othello is portrayed as the stereotypical alien, mistrusted and feared for his black skin and ethnic characteristics. Throughout the play he is constantly referred to as "the Moor". When others call him black', they refer to his physical stature but also to the idea of symbolism within Elizabethan principles: White is honour, black is wickedness; white is innocence, black is guilt.
This chaos rushes him into tragedy, and once Othello has sunk into it, he is unable to stop his rage from taking him over. Othello says,