> I'm not sure why free speech IS file sharing in your argument. Maybe freedom of intellectual property?
The reason you're not sure file sharing is free speech is because your thinking is still clouded by the notion that there is such a thing as "intellectual property".
Property, that pesky word with a relentlessly concrete meaning, is something in the material world that can be bought, sold, stolen, given, auctioned, and after any or all of those actions, it still exists in the same quantity it existed before. Examples: land, cars, computers.
When a person P steals property from another person Q, then it must be true P now is in possession of the property, and Q is not in possession of the property anymore.
When you say a sentence out loud, I can remember it and say it again to someone else. That does not mean I stole that sentence from you (it may mean I'm unoriginal), because you still have the ability to say it.
Now say you say a sentence so long I want to write it down so I can say it again. I write it down and save it on a file on my computer. I give this file to my friends - that is, I give copies of this file to my friends. Now we all have a file that represents that long sentence you uttered, and yet not my friends nor I have taken that sentence away from you.
A file is a long sentence written down. It is speech. It is not property like cars, land and computers. I hope this helps.