"... you always have to start from where you are!"

Socialism.  Communism.  Fascism.  Progressivism.

These social systems and philosophies are widely considered to be the modern antithesis of liberty and free markets, and this view is not mistaken - for all are forms of tyranny, oppression, and the enslavement of man.

What is also thought is that these systems in their various permutations are the natural enemy of, and the opposite of, capitalism.

This is not accurate.

While all forms and supporters of oppressive systems frequently decry the "injustice" of capitalism, supporters of these systems - at some level - all paradoxically acknowledge that capitalism is a superior and natural economic system of production and distribution.

The fundamental question actually revolves around, who shall control the capital?

Even pure socialists (those who advocate the outright ownership and control of the means and results of production) recognize that capital is nothing more or less than the tools and resources necessary for the continued production of those items and services necessary for the preservation and advancement of human well-being - they simply believe that it is the state and not individuals who should own and control it.

There is no room for doubt.  The argument now is over the control of capital, not whether capital (and capitalism) does or should exist.

In short, the real question is -- should we have a system of private (free market) capitalism, government (socialized) capitalism, or a mixture of the two (fascism).

Fascism is often described to be an extreme form of social and political thought of political right-wing authoritarianism, and is especially distinguished by an aggressive tone of national supremacism and international mercantilism or imperialism.

In fact, fascism is much closer to socialism and communism. 

While a fascist society or system allows for capital to be nominally held and "owned" by private individuals, it nevertheless seeks to impose stringent social and economic controls on on that capital by the state, and is typified by a strong, centralized government usually headed by a dictator either in effect or in fact.