Aqua is different. I find it attractive. The notion that it is ugly is certainly not universal. The Desktop is Gone Mac users are accustomed to a certain spatial freedom. Applications, and documents can sit in any directory and can be moved anywhere, including the desktop.
Any statement indicating otherwise is incorrect.
Fortunately, X does restrict the user from inappropriately messing with system files. Trash Belongs on the Desktop Apple moved system object icons, such as the trash and hard disk, off the desktop. The objects are no longer obscured, accessible from all applications, and do not necessarily cause a context switch with their use. The trash belongs where it is most convenient. The Apple Menu is similar to the Start Menu in Windows.