Why do people not understand administrative versus criminal due process?

The Supreme Court’s decision in Department of the Navy v. Egan, 484 U. S. 518 (1988), holds that “no one has a ‘right’ to a security clearance,” paralleling immigration law where non-citizens have no entitlement to remain in the U. S. or obtain permanent, non-revocable citizenship. Even green card holders and naturalized citizens (those without birthright citizenship) can have their status or citizenship revoked through administrative civil processes. Immigration status, like security clearances, is thus a revocable privilege, with both offering limited Fifth Amendment due process in civil administrative contexts that does not afford the full constitutional protections available in criminal trials.
Why do people not understand administrative versus criminal due process?
Post Opinion