From the news report:
[Cory] Goldstein says this confrontation started on campus quad when the unidentified woman went to hand him a flyer but pulled it back and said “sorry we don’t want people with your hair here.”...It's interesting that this video went viral the same day that Trump's campaign manager got charged with battery for touching a female reporter who was touching Donald Trump. Goldstein is lucky this is on video. At around 0:30, the woman says something about Goldstein touching her, when clearly she is the one making the physical contact.
[The woman] tells him in the video that he is appropriating her culture and when he tries to walk away she obstructs his path.
“Yo, stop touching me right now,” Goldstein says he tries to walk up the stairs. She then grabs his arm to keep him from leaving. “I don’t need your disrespect,” Goldstein says as she releases her grip on him and he walks away. Goldstein understands she and her friend were trying to explain why his hair was a form of “cultural appropriation” but he says her approach was not done in a positive way....
Touching aside, hair is a touchy issue. It's gentle of Goldstein to see the potential for positive conversation about the politics of what he calls his "hairstyle."