I'm not assuming anything, I just understand that the risk of the NSA forcing Apple to install malware on my phone is lower than the risk of my local police office following an already legal process to get data that I know Amazon is inadvertently collecting from people today.

You're correlating risks that aren't related to each other; these are two different devices with different threat models. If the NSA wants to bug you, it will bug your house. That doesn't mean you should bug it for them.