to clarify the problem on my end, which, incidentally, i don't think is linked to 'all my files', seemingly at random, when the mac feels like it, a given folder, when opened, reverts to another view and/or sort by order.
so, for example, let's imagine all finder windows are closed across the system. then move over to the dock and click the finder icon to open the home folder. set the view to list and sort by name. close the window, so no finder windows are open.
some time passes, you go back to the dock and click the finder icon. the home folder opens, only now it is in column view, not list view as it was set earlier.
this behaviour is repeated across all windows, but only the home folder when accessed via the dock finder icon, reverts to column view. other folders are re-sorted by other fields, and all field views are reset, i.e. if i had set a folder to show the label column in list view, and sorted it by date modified, when i go back to that folder at a later time, the folder is now sorted by name and the label column is gone from view.
the set as defaults option makes all finder window views the same, and even then the problem occurs after a time.
this is a major problem that desperately needs a solution.