they don't play by their own set of rules.
The Israel == Guantanamo thing doesn't exactly make sense to me either, but now you're arguing nonsense. Certainly, we all know that the government, including law enforcement, doesn't always follow the law.
That's almost the entire argument for putting any limits on governmental power at all.
(That's not to say we should restrict them from doing this, though; if they can crack a phone, good for them, I suppose. But it's another thing to be concerned about.)
Here, the "Israel == Guantanamo" thing doesn't make sense if you assume that the government is using the Israeli hacks to break iPhones it has in custody because of a warrant or arrest. You can speculate that the government is stealing peoples' iPhones and breaking into them without a warrant, but it's an actual logical fallacy to point to different things the government is doing to argue that the government is doing this thing too.