>Most of your examples are covered by other laws. Property rights, defamation or such. However, none of this is forbidden as speech.
That is exactly my point. What do you think defamation is if isn't a limitation on free speech? What do you think copyright is if it isn't a limitation on free speech? What do you think laws against threats or intimidation are if they aren't a limitation of free speech? Those laws are created because we think some speech shouldn't be protected.
>This is demonstrated as false because we had these rights before there ever was something we could call government or even a society. When you are born into the world alone as a living being there is nothing to silence you. Freedom did exist before civilization.
There is no one stopping anyone from taking your rights away if you are born into the world alone as a living being. That is one of the primary purposes of government. The protection of its citizens' rights. If we don't have some force to protect those rights, there is nothing preventing the powerful from taking away the rights of the weak as evidenced by the entirety of human history.
>Status of a free society is not a boolean. The degree to which the society is free is strongly correlated to the degree of free speech within the society.
That is obviously true, but the r value in that correlation also isn't equal to 1. The US is at the extreme in terms of free speech but it is rarely in the top of the various freedom indices that exists to measure the freedom of a society.