That's my point. Trump and his team have adopted very similar techniques. Yes, the Nazis turned in to miltary dictatorship but OP asked if this was the end of democracy, to which I answered no, because after the reign of Hitler and WW2, the majority of the world remained democracies.
I'm not saying either that Trump is in the position to develop a dictatorship, there are checks in the branches of the US Government (see: kittenbreath's comment below), there's a microscopic chance of it happening. But it depends on what you believe? Did the Cold War ever end? Who is really pulling the strings?
Do you see what I'm getting at? It's a rabbit hole. Seeing as this seems to be OPs first encounter with one of the most important political writings, I suggested that he read up on one of the last significant cases of such a thing happening.
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Edit: OP, the book
Rise and Fall of The Third Reich is a pretty informative read. Additionally, if you want to know what would happen if a dictatorial infrastructure was suddenly swept from under the feet of citizens, leaving a vaccuum, read:
The End