from the wikipedia article:

In a 2021 video made in response to the United States Capitol attack, his son Arnold publicly recalled for the first time how Gustav was frequently drunk and abusive to his family when Arnold was young. He attributed this behavior to guilt and shame over what Gustav and other Nazis and collaborators had perpetrated or enabled during the war.[8] His son brought up the war's impact on Gustav again in a 2022 video about the Russian invasion of Ukraine, in which he urged the Russian soldiers to not "be broken like (his) father" by continuing their invasion.

What a dumbass.

He should be warning the Ukrainian Nazis to stand down.

But of course, as a Nazi, he won't.