Do not reimport! You can simply drag the 1969 and 1997 folders onto the KDC LR Catalog 2022 folder in the Lightroom folder panel. That will move them inside that parent folder.
The Finder screenshot and the Folder panel screenshot show that the 2006 and 2007 folders are actually duplicated inside the KDC LR Catalog 2022, so in this case you cannot drag and drop the folders. You need to select the first 2006 folder, then select all the images in the main window, and drag and drop these images onto the 2006 folder inside the KDC LR Catalog 2022 folder. Then do the same for the 2007 folder.
The 2006 and 2007 folders at the top of the folder panel will now be empty, so you can right-click on them and choose to remove them from the catalog.