What are some realistic alternatives?
Whether or not that's "realistic" is another question. It really depends on what's at stake, which is not clear yet. But the point is that governments around the world may face a very similar question in the weeks ahead.
In the US, omnicron is going fast. Hopefully, and I say this with week old information in a huge information-differential environment that evolves hourly, omnicron itself is a step towards mitigation.
No vaccine passbooks or apps.
Return jobs to employees lost because of vaccine compliance/rebuild small businesses (If this is somehow possible but the damage is already done).
No mask requirements.
Covid-19 Vaccines are available and treated in the same way as flu vaccines once FDA approved.
Yknow, normal.