Because unchecked capitalism means paying people as little as possible to maximize profits, which means people are underpaid which causes undue stress at home which leads to bad shit happening.
People are like “ooh it’s so complicated everything is complex, you can’t sum up issues in one or two sentences.” But I can’t really argue with this, like shouldn’t this be obvious to everyone? People are stressed, we can’t afford to live, it seems like our world is going to die in a few decades, all directly tied to our socioeconomic paradigm of capitalism. Of course people are going to start freaking out.