Gulags were shut down for a reason. They were questionable, especially because they weren't used for just re-education. Having a system of forced labor as a means of being allowed into the proletariat after existing as a hostile member of the bourgeoise or as one of their allies is okay in my books, make them work to rebuild what they destroyed for a year or two (giving them housing and healthcare), then allow them back into the urban centers and they'll appreciate the communal housing and 6 hour 4 day work weeks.