I think the argument that Google is trying to make is that Privacy Sandbox is better because it's our trusted friend Google that will control this information,

I think the argument that Google is trying to make is that Privacy Sandbox is better because it's our trusted friend Google that will control this information, not all these other organizations who don't have your best interests at heart. Which is hilarious, and not even original: governments and law enforcement have been making the same argument around privacy issues (to the sound of millions of rolling eyeballs) for decades.