I think in the end European digital ID is going to be impressive enough for others to pick up (not as impressive as using biometric data for payments in China - we don't want to go that route, but still). The integration friction will go down, the security will be tested and verification process hardened over time etc. So it doesn't really matter what opposition says at the moment and whether they will be able to tank the legislation in UK, USA or Australia. There will always be the success story in front of them, that will be hard to ignore. And literally any global website is going to support EU technology, making it major vector of innovation.