Yep, make no mistake this is absolutely going to happen.

Yes. I was looking for this comment before saying the same. This is the biggest selling point of Sidewalk to appliance/product companies. All the usage data, ad data, analytics, even remote control of devices can now happen even if your devices are completely disconnected from your home WiFi. If your neighbor has an Amazon Echo... now its basically connected to the internet. Even if you don't have neighbors, there could be a LoRa gateway a mile away on a cell tower, and its now connected.

Well, we still have physical access at least. Let's see these weasel devices try to connect without a functioning antenna.

The existence of Sidewalk is what prompted me to remove all Amazon devices from my home. I hope the range on that network is less than the distance to my neighbors house (but they're old folks, definitely don't have an Echo).