Phil, you’re jumping to conclusions based on social media nonsense.
The most likely way that vaccine mandates will be enforced is via the existing system of vaccine passports. Unvaccinated people will be denied entry to shared indoor spaces and, likely, have to choose between their jobs and vaccination (if their job requires them to work in a shared indoor space).
There will be no pinning people down to force vaccinate them, no antivaxx concentration camps, or any of the other far fetched stuff you are imagining.
There will simply be a clear choice - get vaccinated or be excluded from ordinary society.