Yea I thought about something similar. Weeks from now it could be as simple as saying “cases are on the rise due to non vaccinated people not wearing masks. Since people are not following the “rules”, we are looking at another lockdown.” At this point, people that are vaccinated would then be on a mission to hunt down those that are not when they are out in public. Asking everyone to see their card and fighting those that don’t have one. Give people their freedom back and take it away. Provide them a new enemy. Those that are not vaccinated.