Among democratic, industrialized countries, the U.S. has the lowest level of protection against workers' unjust dismissal.

This statement is true. The U.S. does not have federal laws protecting workers from unjust dismissal, unlike other democratic and industrialized countries such as Canada and European countries who have stronger labor laws. In the U.S., the at-will employment doctrine governs employee-employer relationships, which means that employers can dismiss employees for any reason that is not illegal.