Sure, but a device with no radios is gonna be an uphill struggle to get anything useful onto as well. And airlines let you use a tablet/phone during ascent and descent right now, there is no need to remove the radios or use airplane mode anymore.
Why? What is your use case?
Mandatory voting is the answer there, it might be annoying at times, but it seems a lot better than a system that allows voters to opt out, or worse, be disenfranchised out.
That might make sense, except that numbers of migrants is miniscule compared to the existing population in almost every case.
For example, Australia has ~200k permanent migrants per year. With a population of 26m. In order for the migrants to become a majority, it would take 130 years to import 26m people. (This is obviously grossly simplified).
There is basically no real risk that we will drown in migrants.
So like an airgapped device? Have you considered getting a cheap off the shelf tablet and cutting the antennas? It wont connect to WiFi or BT anymore after that?