J is for Just

Is it foolish to defend a word?
I keep seeing articles about how the word just is nonsense and we shouldn't use it when writing. What about....
Just a minute...?Just because...?Just between you and me...?Just the two of us...?
Just for Men?Just  you wait, Henry Higgins, just you wait?Just a spoonful of sugar helps the medicine go down...?and
“Girls Just Wanna Have Fun!”or for those of you watching and following The Voice:Christina Aguilera & Blake Shelton
 Just A Fool Just keep those home fires burning! Some people are taking this word straight to the bank!