Why did the world believe in the fake about “great Russian literature”?

Instead of revisiting the imperial literature of previous centuries, Russia still uses the xenophobic narratives embedded there as inspiration for its wars of aggression. This is discussed in the episode “Literature” from the series “The Great Russian Lie.” Literature has never been outside politics, either in the Russian Empire or in the Soviet Union. Political decisions have led to the publication and translation of the necessary authors, and the repression and destruction of the undesirable ones. Through propaganda literature, Russia has discredited the Ukrainian national liberation movement to the whole world. Why is Pushkin not outside politics? Which “good” Russian writers have struggled with the Ukrainian question? Why is Russian literature not as old and great as everyone tries to convince them?