Find missing columns based on column header

Hi all,

I am trying to create a code where it loops through all the columns within two sheets based on the column header. I need to compare the column headers and if the column header does not match, the code will clear contents of that specific column except the column header and so on... I have attached the code I have so far but it doesn't seem to work accordingly. P.S. this code is part of a larger procedure so I have not shown a lot of the variables that have been listed. I have also attached a sample excel file with the format of the columns. thank you!

With wb.Sheets(destinationSheetName)
      lastcolumn = .Cells(columnheader, Columns.count).End(xlToLeft).Column
      lastcol = Workbooks(FileName).Sheets(importFile).Cells(columnheader, Columns.count).End(xlToLeft).Column
      For count = 1 To lastcolumn
      For col = 1 To lastcol
         If .Cells(columnheader, count).Value <> Workbooks(FileName).Sheets(importFile).Cells(columnheader, lastcol).Value Then
            .Cells(columnheader + 1, count).Resize(.Rows.count - 1).ClearContents
         End If
         Next col
      Next count
   End With