Okay, so you know how there are different types of music, like pop, rock, and heavy metal? Well, some people who like heavy metal music sometimes say harmful things or do harmful things towards girls and women, just because of their gender. This is called sexism.
For example, sometimes the lyrics of heavy metal songs can be mean to women, like calling them bad names or saying disrespectful things about them. Also, sometimes in heavy metal culture, people talk about girls or women in a sexual way that can make them feel uncomfortable or objectified.
This is not okay because everyone deserves to be treated with respect, no matter what their gender is. It's important for people who like heavy metal music to speak out against sexism and make sure that everyone feels welcome and valued in the heavy metal community.