A principal removes themselves from a data broker's listings. The spouse, the children, the parents, the in-laws remain on the same broker. The aggregation around the principal continues through the family. A search for any of them returns a household, and the household identifies the principal whether or not their own listing is present.
The brokers know this and structure their products around it. A user of the service searches a name, the system returns a profile, the profile includes associated people, the associations include the principal. The principal's own removal is incomplete because the removal was singular and the data is relational.
The work to address this is a household-level exercise. The principal's removal is the start; the family members' removals follow; each broker has its own process and many require periodic re-submission because the listings rebuild from underlying sources within months.
The picture is what it is. Knowing what it shows is the first work.