Why did the struggle between the democratic and total tendencies in the post-war years end with

Why did the struggle between the democratic and total tendencies in the post-war years end with a new wave of repression in the USSR?

The democratic tendency could hardly win in the end. After the war, the same Joseph Stalin remained in power, who left the old principles of government. In addition, after the end of the war, there was a tendency among the people of a different opinion and free thinking, because many during the hostilities in European countries managed to see the difference from what the media and propaganda within the Soviet Union imposed on them for years. As a result, it was decided to tighten the screws and carry out a series of ideological repressive campaigns.