Or to quote the Supreme Court of Canada:

> The protection of freedom of expression is premised upon fundamental principles and values that promote the search for and attainment of truth, participation in social and political decision-making and the opportunity for individual self-fulfillment through expression.

There is a legalistic sense of free expression/speech in various countries, yes. But it is also a philosophy and worldview that goes far beyond a legalistic sense. One that emphasizes toleration of dissent and competing views as a process to find truth, and one that recognizes the inherent importance of expression in human actualization and dignity. In that broader sense, the state/non-state distinction starts to fade away.

The concept of free speech is larger than the first amendment. They are not synonymous.

Free speech is not defined by the first amendment.