As for Biden, I don't think it's unfair to say he's surrounded himself with wicked men and women who would institute a woke totalitarian regime were it not for a bevy of legal, political, and cultural restrictions.
He's ultimately a mid-century liberal with the basic naivety of that type. His opportunism would have rendered him a tepid Dixiecrat or nominally Pro-life Republican were he born and raised West Virginia instead of Pennsylvania/Deleware. He's woke because he is stuck in a woke party and, lacking conviction, there is no incentive for him to break rank.
Stalin was another matter entirely. He was an ideologically driven serpent with a masterful grasp of how political machinery is built and operated. He moved events more than events moved him.