Privatization in general doesn't need to be a disaster either as long as good rules are setup, allowing and pushing for competition.
Any core functions for a country (you know, water, electricity, internet) should be under much, much harsher rules to ensure people get good quality of whatever the service is
Internet, for example, is a shitshow in Canada. I'll get twice more for twice less in Mexico with less interruption. Yes, Rogers, you incompetent idiots, I'm looking at you. Telus isn't much better but at least slightly more competent on average