So they use power 24/7, do they also listen to what happen in the room? because those brands sure like to spy on what users are watching (even the HDMI in on some of them)
I thought the whole “your devices are listening to you in order to display ads” myth had fallen out of popularity
You mean the media stopped talking about it - it has no relation to whether it happens or not.
You quite literally can't tell by watching one what it is doing. You certainly cannot verify that all Alexas are not doing something.
This is a bizarrely specific thing to attempt to counter argument with.
Also 99% of people don't even know how to do this, and of those that do, 99% won't bother.