I don't take the Maher idea seriously. I don't believe Trump would feel any ownership over documents he would personally have no interest in reading nor that he would even comprehend. I think he thinks in terms of value, profit, and leverage. My feeling is he would not even understand what documents to steal without being told by someone else what to take. Some things he might want because he has a rather huge drive for revenge. He always lusts after revenge. The documents he took on the French president and documents he took on Roger Stone may have been ones he selected but documents on weapons programs and intelligence matters...he'd be somewhat clueless as to what they said or what value they would have. He would want documents on the Clintons or Obama or Biden if any existed with juicy info he could use against them. I think he was likely disappointed he found none. 

These documents are not mementos or things that he could frame and show off, they are things he would absolutely need someone to explain to him. That's Trump's thing, give him a short three sentence summary verbally of what it is and then he will invent in his head what it might mean for him. Not comprehend it, just create in his mind how he can make something off of having it. He has a transactional thought process and focused on his profit from the transaction no matter what it does to someone else.

Yes, some of the idiots he put in place believed that whatever Trump did it was magically legal. They live off of the Nixon phrase "If the president does it, it is not illegal."

This is a core belief for them.

Kash Patel, mentioned in the article I posted in this thread, is one of the idiots going around saying that Trump could just wave his hand over a bunch of documents and they were declassified. I think they should be looking at Patel as potentially one of the people that helped in collecting documents to steal. I think he is probably saying that he thought Trump could declassify anything by snapping his fingers because he may have assisted that theft. This would be part of Patel's defense if he helped, he thought Trump could declassify anything he wanted to take.

Yes, you are correct, a president can't just declassify anything he wants. There is a process and other people have to sign off on declassifying the information. Trump was notorious while president for not understanding how to handle classified information. So, much so his own staff discussed not showing or telling him things because he would then openly talk about them in front of anybody.