I don't think you're dumb or trying to change anyone's mind or you have an agenda in general, and just trying to understand. Also, the "fashionability" of your PoV doesn't matter for me, because we're discussing here, and trying to learn from each other.
There are two problems with this PoV.
First argument is, we really don't understand how much private information we have, and how making it public is creepy. Your finances, what you own, how much you earn, your sincere chats with people you love or care are your private information. These things maybe known by limited parties, but when all of it is public to anyone, even to an algorithm reading it, and making it searchable is creepy and unsettling. I don't want a copy of asking my friend about their personal well being indexed anywhere.
This brings the second argument, and the above paragraph becomes a dangerous precedent. Consider you were chatting with your friend, spouse or child. One party says something and it can be very dangerous if it's taken out of context. One person shared an anecdote about their Alexa device. They found a recording in their account, their child saying "Why daddy always beats me?". Think about it for a second, and how dangerous this can be... The context was they were playing Uno, and dad beat their children in the game.
Again, take this recording or a couple more. Fine tune an AI sound engine with it. Extrapolate from there.
You see where this is going...
We want privacy not because we do nefarious things, but because we don't want our private matters to be publicized and not abused to harm us. This is why you put a password to your phone. Not because you hide something, but not to leave everything lying there.
Lastly, in the words of Edwards Snowden: "Arguing that you don't care about the right to privacy because you have nothing to hide is no different than saying you don't care about free speech because you have nothing to say."
More reading: https://en.wikipedia.org/wiki/Nothing_to_hide_argument