That and I can choose not to directly do business with a company without having to upend my entire life. Also none of them have armies. Not that I'm a libertarian or something, just gotta remember that the big nations are very clearly more powerful than corporations.
It'd mean directing people to a new email address, downloading stuff out of Drive, and maybe not advertising via Google. That doesn't seem like a lot. If your job is YouTube content creation, you'd need a new job, but you also had to make specific choices to end up there.