The subject of this study is the current political and legal phenomenon, which is “political and legal aberration”. The study reveals the content of the subject, which is considered, on the one hand, as a manifestation of legal nihilism, which is typical for the actions of public authorities and political structures within the state due to their conscious or unconscious disregard for the norms of international law, carried out in their narrow corporate interests. On the other hand, it is a kind of legal mechanism, a legal weapon, which is used as a result of the subject of international law giving priority to its domestic legislation over international law, carried out with the aim of hybrid aggression, solving its imperial goals of seizing the lands of its neighbors, etc. To this end, and counting on impunity, all sorts of crimes are committed in the occupied and other territories of the victim country. Such a subject of international law, in this case, is the Russian Federation. The article examines the practical manifestations of legal nihilism in various public authorities of Ukraine in modern conditions, analyzes their causes and the onset of negative consequences for the realization of the dream of Ukrainian society - the European integration of Ukraine, joining the family of European, democratic, economically developed countries. Attention is focused on various aspects of the above, including the manifestation of such a negative consequence of legal nihilism as the peculiar desire of public authorities to carry out judicial reform in Ukraine. It is noted that this situation serves as a kind of barrier to the Euro-Atlantic aspirations of the Ukrainian society. It is noted that in modern conditions, when individual subjects of international law use the law itself not as a universal democratic mechanism for regulating social relations, but as a kind of legal weapon against political and legal opponents in order to achieve their own, primarily imperial, mercantile interests, to undermine the existing world law and order, public security systems, etc., thereby destroying the existing systems of international security, the system of established and regulated legal relations, and creating threats to the existence of life itself on the planet. A conclusion is made about the expediency of reformatting the existing international institutions of security and legal relations, or their complete reboot, or even their liquidation and creation of new ones, following the example of the liquidation of the League of Nations and the formation of the current UN.