it's harmful to not only individuals, but society as well. it is hard to combat because of how society works. If someone very influential says something ra cist, se xist etc on social media, that can teach many people to think saying things like that is okay. alienating someone from society is incredibly harmful, and it can influence others to do the same.
Answer:
can go out and have fun?.......
You can help them by sticking up for them or saying something to the person whos bullying. You can aslo tell an adult or someone whos close or call 911 if it's a really bad situation.
Hoped I helped!