Also, it is a time management issue, on a cultural level. Try getting Germans to stay past their shift they’ll tell you to get better at managing. Not their department, not their problem.
Thinking “fixing this requires a socialist revolution” honestly is part of the problem: Organise to fix the issue, there, workers will see that issues can be fixed, fix more that comes up, and they’ll both be emboldened and educated about their strength. Foreplay before sex.