Just because you say so and believe so doesn't make it true.
My father was in a position in the Navy in WWII to learn and see things that weren't common knowledge, like our invasion plans for Japan. He helped set up the communications and Loran (early radar system) around the North Atlantic. Before our entry into the war, as a civilian he was involved in commercial flights around South America. He watched German activity in South America and reported it to our government. He helped fly (as communications officer) lend lease planes from South America to Africa.
My aunt served in the State Department in Morocco and the Amazon. She also trained with OSS.
Both of them learned to speak Spanish and saw Nazi activity in South America.
What was in the mind of Hitler? He may not have left any papers you or I can point to, but I believe he eventually meant to take over the U.S.
I couldn't agree more. That's why, instead of just taking my word for it, you should use your own deductive powers and come to the inevitable conclusion that such an invasion was for all intents and purposes impossible. Because Germany did not have anything remotely approaching the capability it would have taken to invade and control the United States, such an idea was never for a moment given serious planning consideration by the Germans.
If you have a shred of evidence to the contrary, I would be interested in seeing it.