If you think that the FBI has documents, then there’s not much point discussing this with you. That’s full on conspiracy theory stuff.Trump was asked to return classified records and Trump's attorneys turned over 38 pages marked as classified and attested that all records with classified markings had been returned to the government.
This was disputed and Trump was charged with violations of a 1917 Espionage Act, conspiracy to obstruct justice, and making false statements to investigators.
What documents were retained? Those that the FBI came and put in their own classified document files folders on them? "Classified document" folder covers they brought with them on the raid, as shown in the Court Ordered documents gained by FOI requests?
Obama's orders proves Trump claims he did have a "standing order" to declassify documents and casts doubt any that were not handed over, were classified.
And of course what stands out is that both Biden as VP and a Senator and Pence as VP, actually did retain classified documents, that had no right to have, did not store them secures LOL, and did not have the White House (not the DOJ or FBI) authorise a raid with deadly force to take approximately 13,000 more records, about 100 of which they claim were marked as classified.
Trump wilfully attempted to conceal documents from the FBI (and his lawyers) and moved the documents around his properties to do so. There is testimony from his staff that this happened.
Presidents can declassify material, but there is a process to do this. In the simplest of terms, you can borrow a book from a library, but you have to let someone know that you’re taking the book. You can’t just walk out of the library with a bunch of books. Trump didn’t follow this process of declassification and when asked if he had any documents said no. That’s why the FBI raided his property, they knew he had them. They found them. So Trump lied when he said he didm’t have any. Then when they were found he said what you’re saying, that he could take declassified material. Which now goes to the point above. This is basically what the case is about.
With regards Biden, his lawyers were asked if he had any, they said yes and they were returned. It seems to me that if Trump had returned all of the documents in the 1st instance when questioned, the case against him wouldn’t have evolved. It’s the fact that he deliberately tried to conceal his possession of the documents that lead to the charges against him.
Your post above misses a lot of detail that is very important.