Acknowledge the problem?

Build in functionality so it only recognizes your voice and everything else is removed?

Don't hide behind "privacy" promises or "your data is secure" when that doesn't fix the issue.

Just because we can admit that the reality is the problem is not going away doesn't mean that we just give up and not talk about it.

Plenty of signs in the 20m radius, something along this:

https://www.thesignshed.co.uk/cdn/shop/products/24-hour-cctv...

Possibly change the usual 'hi' greating to the more appropriate 'sign this release form before coming close or talk!' one.

Come up with a solution, most likely. Since when has this crowd bowed down to a challenge because “there is nothing you can do”?

Maybe not arguing for the acceptance of a bad situation just because it is ubiquitous?! I have a strong dislike against people knowing perfectly well that something is bad but still they raise their voice for the acceptance of that bad thing on the basis of size, of giving up and doing absolutely nothing against it, not even trying.

... or ... if I see it from a different standpoint then doing nothing is not that a bad idea actully. In my case I make it very hard sharing (accessing) pictures of my kids with relatives. Knowing how the big tech hijacking the communication that is used by average folk and how ignorant most are towards privacy implications on others I rather not share pictures except with those few being able to handle secure channel and private thing the way supposed to. Or they can come over in person. So I have to agree now, doing nothing, not using contemporary technology is a great idea! And ban it from (your own) children too.