Like, the UK economy is stagnant, there is a cost-of-living crisis, and Labour needs to present the public with an alternative to Farage. And the answer is... digital ID cards?
But there's also the issue of selling this to the public. The stuff you and I are talking about is quiet, probably because it's not sexy. The digital ID thing is loud and prominent.
This is why "green new deal" is a good idea -- it's a loud, good way to sell the public on something they'd otherwise fail to understand.