3 things the Borg can never, ever, ever, remove are
DFing arrangemen
2 witness rule
Erroneous blood doctrine.
We all know for damned sure about the 2 witness how they adhere to that one like glue ( all the way to the top) with everything.
With the blood doctrine they would be sued into oblivion.
DFing policy,,,,,sued also into oblivion due to lost lives with suicide because of lost loved ones due to mandated shunning.
The Borg is it's worst enemy. They have painted themselves into a corner on many levels.