There is nothing wrong with liking sports, sports are cool and fun and can be healthy social events. For someone who is a casual sporting event enjoyer, sportsball discourse is kinda rude and minimizing of their interest.
There is a lot wrong with defining your entire identity around sports and acting like a child throwing a temper tantrum when others don't also base their entire identity around sports. It is for those people that sportsball discourse is not only suggested, it is mandatory, because those people should be shamed into doing something useful with their lives. This is doubly true for people who base their entire identity around some specific subset of sports and who reject any sport outside of that subset. If smacking ball with stick across grass can be a sport then pretty much anything can be a sport.