It is interesting that the wiki profile is stated in the biography, but it is not listed as a source for the profile!!
ah, right... then its just a link, to connect the two sites together. We often add FamilySearch links to WikiTree profiles too. We're just saying we're talking about the same person on both sites. Doesn't mean anything has been copied.
What exactly is being copied?
The person existed. They were born on such-n-such day. They died on such-n-such day. Married. Had children. Most of this information is already public, and verifiable, from multiple sources.
These are facts. Facts can't be copyrighted.
On the other hand... if they are merely copying unsourced family trees, then there's no proof -- yet -- that they even existed. (yes, we have unsourced family trees here at WikiTree too)