Analysis of information sources in references of the Wikipedia article "Tucker Carlson's interview with Vladimir Putin" in English language version.
Most of what Putin says about the past is ludicrous; but even had he said some true things, that would not justify destroying the international order, invading neighbors, and committing genocide.
Putin provides various dates to make various claims. Anyone can do that about any territory. So the first implication of Putin's view is that no borders are legitimate, including the borders of your own country.
In the interview, and in other speeches during the war, Putin depends on a false distinction between natural nations and artificial nations. Natural nations have a right to exist, artificial ones do not.
By 'why' I mean the horror inherent in the kind of story he is telling. It brings war, genocide, and fascism.
Putin's story divides good and evil perfectly. Russia is always right, others are always wrong. Russians can behave like Nazis while calling others "Nazis" and all is well. Russia is a people with a special purpose, resisted by conspiracies. Putin's war has been fought with fascist slogans and by fascist means, with mass propaganda and mass mobilization.
Der 54-jährige Carlson ist für die Verbreitung von Verschwörungstheorien bekannt[54-year-old Carlson is known for spreading conspiracy theories]