Dynamic range compression (DRC) is destructive so of course the normalisation cannot repair the damage. But the point is there is no longer any reason to use DR

Dynamic range compression (DRC) is destructive so of course the normalisation cannot repair the damage. But the point is there is no longer any reason to use DRC simply to try to increase the playback level because Youtube will undo any attempt. DRC now simply reduces the dynamic range, making music sound worse, not louder.