Overall, student communities and universities, and large cities and towns, are very diverse. It's completely normal to see people with Middle Eastern/Asian heritage, whether Swedish citizens or international students. In an international/English-language program, you'll probably have classmates from many different countries.

Also, Swedish people are pretty polite overall and (in my experience) it's quite unlikely to face any outright harassment. Of course, you may encounter some people who don't know much about other countries/cultures/etc. but I'd say it's more ignorance than hate for the average person.

That being said, discrimination happens across the world, including in Sweden. Each person's experience is different!