If your baby monitor signals go into my home and I am able to demodulate them into a clear signal then why shouldn't I be able to?
With wifi, an unencrypted network is an open invitation to connect to it, as this is the way to connect through portals which transfer to encrypted tunnels. Intercepting other traffic on the network is not OK since you would be violating hacking laws since it isn't your network.
Same thing with cell networks. Your phone broadcasts its data, which is perfectly legal to pick up, but if you have to use any network resources which aren't yours then it's a no-go.
Overall, if it is being broadcast into my house I can capture it, but I can't send things back to the source and try and get it to do things.
With wifi, an unencrypted network is an open invitation to connect to it, as this is the way to connect through portals which transfer to encrypted tunnels. Intercepting other traffic on the network is not OK since you would be violating hacking laws since it isn't your network.
Same thing with cell networks. Your phone broadcasts its data, which is perfectly legal to pick up, but if you have to use any network resources which aren't yours then it's a no-go.
Overall, if it is being broadcast into my house I can capture it, but I can't send things back to the source and try and get it to do things.
Your argument falls flat, sorry.