You can look up the history of this company's claims versus reality on their promises re. privacy yourself, there's enough to be found between Siri listening when it shouldn't, user data being accessible to the company in contrast to promises of privacy, the company collecting user data which is used for targeted advertising, several examples of push notification data being handed over to law enforcement agencies in several countries, leaky 'airdrop' allowing user identification which wasn't fixed by the company even after a fix was published by outsiders and more.

The real question is why you seem to be so credulous when it comes to this company. Do you extend this trust to other similar companies or is it only reserved for this specific company? I ask this because you're not the first person who seems to consider this company to be almost above criticism even though they've shown to be just like other companies in all respects. When Jobs was still around this stance was supposedly caused by his 'reality distortion field' but he has been gone for a long time and given that Cook has the charisma of an accountant this can no longer be the reason. What makes them so special to some even though their claims have been punctured many times over?