We have had two APNR equipped vans driving around our side streets. Look almost like those Google Map cars. Looking for cars on the street, uninsured and/or untaxed and not SORN.
Surely tax is on the car, irrelevant of owner but insurance is what counts? Even the name to whom the car is registered is not important as long as the car is taxed & driver is correctly covered.
And, before slagging off the UK government (regardless of flavour and your own affiliations) and saying you will go elsewhere, have a check on what the governments are like in those other countries. Pretty certain I wouldn't want to emigrate to some 3rd world sh!thole just because of lax car taxation rules.
Moaning about the government ripping drivers off in one breath and then declaring how best to wriggle out of paying taxes in the next does seem hypercritical to me.