What is the proper way to handle a video with issues ???

I am unclear on what you are asking.

Is this YOUR family? If so, ask permission to host and share it, with credit, if you wish to.

Is it another family (say, mine, for instance)? If you think that the other family should have access to the film, i guess i would suggest that you ask members of that family who are Geni participants to pursue it and give them some details of where to look, or at least what to look for. .

In either case, i would not commit a copyright violation.

On the other hand - is there a way to at least document in the "About" Section of one or more of the relevant Profiles the existence of the video - and perhaps some comments as to what it shows - or any important facts it documents - especially if not documented elsewhere.
Also possibly some clue for family members - or others interested?? - who they would contact to also receive access to the video.