What happens to Jews who are not considered fit enough to work?

During the Holocaust, Jews who were deemed unfit for work, including the elderly, sick, and children, were often sent to extermination camps or mass execution sites. The Nazi regime viewed them as "life unworthy of life," leading to their systematic murder. Many were killed upon arrival at camps, while others faced inhumane conditions and eventual death from starvation, disease, or execution. This brutal policy reflected the regime's genocidal ideology.