William de Hamilton - Hamilton Y-DNA line blockades

This is the 3rd block of the Hamilton line that I have recently seen on the genealogy internet circuit. In this one, William de Bellomont de Hamilton (Hameldon, de Hambleton , de Harcourt) (Hambledon), (1st to use Hamilton name) (my 19th great-grandfather), (my male line) is being blocked from having a father.
The 2nd is on Wikitree where they will not allow James Hamilton 5th of Cadzow to have a father (my 14th great-grandfather), (my male line).
The 1st is Family Tree DNA where they also will not allow James Hamilton 5th of Cadzow to have a father in their "Hamilton Project".