See my other comment with regards to the issue of "literal slave".

I think we should also take into account that the problem of unfree labour conditions does not exist within a vacuum. There is after all, even in free democratic countries, the threat of violence (from the state) that in general upholds the systems of oppression from businesses and others. Most people born, if not fortunate with inheritance, have initially no property on which they can sustain themselves. If they want to have some they have the option to steal or work, the former most won't do due to the threat of violence (read ultimately usage of physical force, not to be confused with police violence) from the state.

When also the businesses have tools to shape and influence politics, one may to some degree extend their form of oppression to not only include direct economical exploitation of workers, but also as the designers of the oppressive conditions that allows them and the rest of us to be in the conditions that allows for this to happen in the first place.

That is not to say that I want us to confuse direct dictatorships with capitalism, but that if we want to have a truly free and democratic society we need to look at all aspects of society and not pretend that the huge part of all our lives that comprises of work need to be under democratic control. Also, the imperialistic tendencies of capitalism on the global stage is also a huge reason for political instability and empowers dictatorships around the world.