Class struggle is central because it is the struggle of the majority — the working and poor people.

The ruling class and the working class have totally opposite interests. The rich get richer at the expense of the poor; every gain the working class is at the expense of the ruling class. This leads to a struggle between the two key classes which we call the “class struggle”. Only the working class and peasantry can create a free society because only these classes are not based on exploitation.

The majority of people are working class and therefore have a direct interest in opposing capitalism and the State. That is why most people are actually engaged in class struggle, through actions like strikes, squatting unofficially, land invasions, rent boycotts, getting back at the boss etc.