If they've been declassified they aren't top secret anymore.
There are some secrets that can't be declassified although there is zero evidence Trump brought those home.
I agree with you on the issue of us not having enough evidence to make broad claims. But you’re apparently just taking Trump’s word that he verbally declassified (if it even works that way without any paper trail) any document he brought to Mar-A-Lago and that the government wouldn’t have the right to ask for them back.