It's no surprise that Trump remains a tremendous threat to US national security even after leaving the White House, and the Mar-a-Lago search is there to remind us of it. Despite knowing he had removed classified documents from the White House and destroyed some of them, his supporters have irresponsibly attacked the operation and attempted to politicize the FBI and the DOJ. This is an exceptionally serious situation.
The DOJ and the FBI are only playing politics as Trump would have transparently given them anything they wanted. It's evident that there was no serious risk to national security as they waited days to execute the search warrant, which didn't request immediate action. On top of that, Trump had absolute authority to declassify documents when he was in office.