Good grief I have no idea why these debates always descend into alarmism and philosophizing. Virtually every democratic country on this planet has national id cards. Switzerland, a bastion of democracy does, Israel does, South Korea does, Germany, does, if you emigrate from the UK to Switzerland, does anyone feel they've now entered a fundamentally new relationship with the state because of an ID card?
National identity needs to be tracked in any country, regardless whether you have an ID card, and all the systems the UK has in place prove that point, the card doesn't change anything other than actually guaranteeing some standards and safety and consistency and providing some utility.
If you buy booze online in Germany on Amazon you can type in your ID and your age is verified within a minute, and the standard actually demands that those requests are ephemeral. Can anyone tell me why that's worse than some patchwork of private verification industries who leak your data every two months or sell them to god knows who?
In the US government agencies buy license plate data from private firms because they can't collect it legally, I assume UK agencies (would) do similar things if they want identity data.
Does anyone seriously think not having an ID card stops the government from unifying data? What are all those UK government contracts with Palantir for? Great now you're under surveillance AND you get the privilege of paying a private American firm with taxpayer money for it