Private property isn't a sacrifice. I don't own any.

There's a difference between personal property and private property. Private property is a mall, is a factory, is machinery at your workplace. Personal property is your toothbrush, your Playstation, your Television, your blender, your set of German knives, your computer, your books, etc.

Freedom of speech has never existed. The illusion of it has been allowed to be stronger or weaker in various places at various times, if your speech is no threat it's often allowed, it's when it's a threat that suddenly the freedom vanishes and hides behind excuses like national security or illegal ideologies, etc.

I question how you would get rid of freedom of thought without some sort of hellish brain implants being made mandatory so it's an odd thing to mention.

I'd be willing to sacrifice an awful lot of fascists, reactionaries, and an awful lot of enabling liberals. I'd be willing to sacrifice bourgeoisie. The expropriation of their private property is not a sacrifice but a necessity for things being held in common trust for the people.