Iago has been influenced to corrupt othello, not only because he is racist but also because of society, humans in the elizabethan era, believed in the devil, and black magic, and thought that black people were the main abusers of these horrible aspects of their lives, so because of this Iago's society has reassured him about his ill doings towards Othello. Brabantio reffering to Othello's realtionship with Desdemona. "She, in spite of nature,Of years, of country, credit, every thing,To fall in love with what she fear'd to look on!" Brabantio saying "in spite of nature" this comment refers to his thoughts on love with a moor is unatural and should be frowned upon, this quote creates tension for the audience, because it is one of the first things we hear brabantio say on the topic of his daughters relationship. It is also a reference to the elizabethan society, and their thoughts on black people, brabantio had only a directly reffered to othello's race and nothing else about him, it is blatently racist.
Jealousy has been presented as a regularly seen perspective. Jealousy in Othello, is easily seen in the play, especially through Iago. Micheal Cassio was subject to a lot of Iago's jealousy and had a large influence on how Iago acted throughout the play "As masterly as he: