The research aims to study the features of tolerance/intolerance as an indicator of people's dispositions of radicalism in a poly-ethnic and poly-confessional society. The study was conducted in Kazakhstan, which can be an interesting example of a multi-ethnic and poly-religious society; a similar experience of the risk of radicalism among young people in a multicultural society is now shared by many countries of the world and most urbanized communities. To conduct applied research, methodological tools were created. The study was conducted online using the Google Forms platform. It involved 100 Almaty university students (43% of males and 57% of females) of various specialties in their 1-4 years of study. The study shows very high violent extremism indicators: the cult of power, the permissibility of aggression, conventional coercion, and conformity. It was found that there are gender differences in terms of violent extremism dispositions and tolerance: females are characterized by tolerance, social tolerance, and tolerance as a personality trait (p≤0.05), while interpersonal tolerance is characteristic of males (p≤0.05). The affective and conative tolerance components are more developed in females (р≤0.05), and the activity style and value orientation components are more often found in males (р≤0.05). Integrative tolerance corresponds to the average level: 87% have an average level, 11% have a low level, and 2% have a high level.