Answer: The goal of social media is to show people stuff they want to see
Step-by-step explanation:
Social media apps work by showing you things you want to see so you stay on the app, thus watching more adds and giving the companies more data to make money. When you argue a position the app will show that to people who want to see that, people who already believe what you're saying. Which is fine to build supporters, but if you want to have a discussion with someone who might disagree with you the chances are low. The other element is that online people act differently in person, with the relative anonymity of social media people will say things they wouldn't say face to face, which can lead to arguments and discourse