This used to be an issue in the Redhat flavors. You could uninstall python or bash and the system would eat itself (RHEL5 and before). Since then, they have a

This used to be an issue in the Redhat flavors. You could uninstall python or bash and the system would eat itself (RHEL5 and before). Since then, they have added protections for specific packages and you can even add further protections for whatever you consider to be critical packages.