Stanley Kowalski is an Alpha-male who will stop at nothing to show his dominance, Stanley represents masculinity and fulfills the expectation that males should have an air of superiority even if they don’t all deserve it.“He acts like an animal, has an animal's habits![...] There's even something--subhuman--something not quite to the stage of humanity yet!” He would stop at nothing to show his violent side until he is accepted as the “king” he perceives himself to be.
"Don't come in here!"
"Poker shouldn't be played in a house with women."- Mitch (scene 3)
Tennessee Williams reinforces Gender roles by using Stanley’s action of casting women aside to show that they have inferiority to males. In society, women are classified as housewives, cooks, backseat roles. Stanley stops at nothing to show that he's the head of the house and he should be treated as such. The impulsiveness and animalistic nature of people can drive them to do things that aren't morally right. The type of society a person grows in will influence values and principles.
"Drop the bottle top! Drop it! We've had this date with each other from the beginning!" -Stanley (scene 10)
Stanley very arrogant and aggressive. He rapes Blanche out of sheer wickedness to break her an see her shatter because she always fought him for the power of dominance. As an animal, Stanley is thirsty for control and like wolves, they protect their territory. There's no explanation for that inhuman act. He was trying to show Blanche that there's no place for her in HIS home. Men always want to assert their dominance, most like Stanley, resort to violence to make a point.
Tennessee Williams uses Stanley’s character to show the role masculinity plays in society. Men are portrayed as the faultless ones and the women should walk on eggshells around them so their ego isn’t affected. In the play, Blanche tries to divert from gender roles by doing what she wants and likes but Stanley won’t let her have her peace. Their conflict becomes a battle between a wolf and a pup, a vulnerable woman and an arrogant man fighting for dominance. Unlike how gender roles dictate, till the end of the book until she is raped, Blanche refuses to submit to Stanley until he unfairly gets an “advantage” by raping her. Resorting to violence for a lot of things, Stanley continues to bully people around him, preying especially on vulnerable women to do what he wants them to.