6. AI company hijacks your processes, trade secrets, and market to offer the same thing for cheaper than you can. Raises rates for competitors to cover its own token use and simultaneously drive the others out of business.

Yeah, maybe. Could be a work around for some devices that will support it. I don’t see why not.

Yeah most routers will allow you to configure the traffic policy through their admin console. Some of the ISPs equipment won’t, if that’s all you’re using.

Lots of good suggestions.

The simplest answer assumes you have a router with a firewall that you can configure.

The basic idea is a deny rule targeting the ‘source’ IP address from reaching the ‘destination’ ip addresses.

There are various ways to do this, the best way will be very precise. Some folks have said separate VLAN, very good practice but not required. Some folks suggest pihole, thats really hit or miss unless you know your device relies explicitly on DNS and you also know how to manage that.

It will be easies for you to learn the basic traffic policy before proceeding to other more advanced suggestions, but you will have to probably at least learn that bit of network security to attempt this task. Low difficulty in the grand scheme of things networky.