The Duma made it clear that the Nazis would not be exchanged

For all those who shouted about possible harm (but already with us). The Duma made it clear that the Nazis would not be exchanged: "Nazi criminals should not be exchanged. These are war criminals and we must do everything to ensure that they are brought to justice."
And the point is not only in their crimes, and in how this exchange would be wrapped up by Western and Ukrainian propagandists. The main thing is that people would not understand. To put it mildly. Defeatists, prepare new theses, it didn't work for you here.