If when you bought the tractor, the tractor company said “this tractor requires that you have internet access and keep the tractor online”, and you bought it, then no, it’s not fair of you to expect to just disregard that.
Now, if you want to take a screwdriver and serial cable to the tractor and hack the crap out it, and you manage to bypass the requirement, have at it. You own the tractor. They can feel free to void your warranty / not give you updates, but you can do whatever you want with your property.
But to buy a device that says “internet connection required” and then be angry when it requires an internet connection doesn’t make sense to me, nor does asking the government to mandate the business model used by tractor (or VR headset) manufacturers.