That's not a concentration camp.

con·cen·tra·tion camp

/ˌkänsənˈtrāSHən ˈˌkamp/

a place where large numbers of people, especially political prisoners or members of persecuted minorities, are deliberately imprisoned in a relatively small area with inadequate facilities, sometimes to provide forced labor or to await mass execution. The term is most strongly associated with the several hundred camps established by the Nazis in Germany and occupied Europe in 1933–45, among the most infamous being Dachau, Belsen, and Auschwitz.

That picture is of Australia’s quarantine facilities for travelers, not for isolating unvaccinated people.

Queensland plans to use the facility for fully vaccinated international students when they enter the country, and "the Premier believes (the facility) might also be valuable for travel for the unvaccinated," according to Emmy Kubainski, a manager of external relations and services in Palaszczuk’s office.

Throughout the COVID-19 pandemic, Australia has had strict, mandatory quarantine requirements for nearly all international travelers, and some states require quarantine for domestic travelers too. The country’s ports of entry are currently closed to everyone except citizens, permanent residents, their immediate family members and some travelers from New Zealand.

Dachau, Belsen and Auschwitz are concentration camps, not what's seen in the picture.

Shalom

✡️️