Democratically elected/accountable doesn't necessarily beget quality. See: politicians.
Point is, people act like moving away from capitalism would suddenly fix all life's ails. Sure, it would probably fix some stuff, it would probably cause some problems capitalism doesn't too. It's much more effective to focus on tackling specifically scoped issues rather than whinging about capitalism and proposing no solutions other than tearing down the entire system and hoping whatever rises from the ashes is better.
To make some very specific points, I believe that if we simply fixed outrageous housing and healthcare costs, the overwhelming majority of domestic complaints about the USA would be solved. No need to ditch capitalism to fix those problems.