One Advantage of the Left
One advantage of the Left: They have organized a coalition of people with more free time than average.
Look at the components: The unemployed, tenured professors, college students, welfare recipients, artists on government grants, and childless people.
The Left can go protest something at a moment's notice. People on the Right can't. The Left can spend hours “reporting” on people they disagree with. People on the Right can't.