Also you might be a bit dramatic. You make it sound like Unity is going to be the advent of totalitarian state.
I think you underestimate John Riccitello.
When he was CEO of Electronic Arts, they won "Worst Company of the Year" title twice in a row, beating out companies like cigarrete manufacturers and mercenary agencies involved in war crimes...
The company that merged with Unity infamously, is specialized in spying on users that do not consent, for example because Installers have elevated privileges they sneak spy code in them, to the point Microsoft started to detect such installers to delete them as malware.
And Unity themselves recently, promised stock owners that they would find a way around Apple privacy restrictions on iPhones, and they sought this fusion after their stock went down when they disclosed to investors that their own technological efforts failed.
Are you SURE you would trust a company like that? They literally promised investors, to ignore user consent. If they promise you they won't breach your privacy, what makes you think their promise to you, rando guy they don't know, is more important than their promise to investors that give them money?