At this point, Trump has clearly despaired of surviving...

[Mike 03]

4. The parallels are eerie.

Hitler expected everyone to go down with him, just assumed it would be so. He knew there was no future for Nazis after WW2, as did other of his inner circle.

And they were prepared to bring (and for the most part did bring) all of Germany down with them. The terror the Nazis wreaked on others became a terror it wreaked on its own citizens as the Party attempted a last ditch effort to fanaticize the German people to fight to the very last bullet as the Wehrmacht collapsed.

Speer, Himmler and perhaps a couple of others (Goehring?) were double-dealing, trying to figure out a way they might survive by making overtures to the Allies, or arrange a surrender behind Hitler's back, but nothing panned out.

Bormann and Goebbels were True Believers to the bitter and senselessly stupid end.

Some committed suicide before they were captured.
Some committed suicide after they were captured.
Speer managed to escape punishment, though he should have been hanged.