For anyone not convinced, do this small demonstration of what your iPhone is capable of:
Go to Settings, Accessibility, Live Captions, turn-on Live Captions ,then tap the microphone icon and start talking.
It can, of course, do this surreptitiously (as directed by relevant security institutions) and upload the data at any time without your knowing.
Rest assured that soon all modern digital appliances will be capable of this, and those enabled with a video camera(s) will have similar abilities with respect to what it 'sees' (identification of people, transcription of text (iPhone already does this extremely well), evaluation of your psychological state, prediction of your actions, etc.). Think phones, TVs, Cars, kitchen appliances, etc.
All this, and more, is coming, and will be used against the people -- UNLESS WE STOP IT.