Unionization and International Students
International students are admitted to US universities and given a student visa in their capacity as students. This does not mean that in a limited capacity they cannot engage in certain forms of labor without affecting that status. The Office of International Affairs has a useful website with general information: http://internationalaffairs.uchicago.edu/page/campus-employment
A unionization of the graduate student body would not likely affect international students’ visa status, but it may have a small effect on the bureaucracy surrounding taxes and wages. A union would also help secure and improve benefits and working conditions as laborers but also as students in a position of contingent employment.
UIC has prepared a PDF to answer some basic FAQs regarding unionization and international students:
Compare Graduate Employment at Brown Univeristy: https://brownsugse.com/faq-for-international-students