I firmly believe that there has been misunderstandings and mistakes made by all involved.
I only looked at a single example, [[Eizabeth Opie (1831 - 1875)|Opie-144]]. It looks like you added this person without sources. I am not sure it is automatic, but the biography of this open profile included the text, "A source for this information is needed"
The change made was to add a source "Australia, Death Index, 1787-1985". Birth and Death information was added and this death index was included as the source.
Wikitree is different that other sites, and I think you will find that you will be appreciated for your contributions, and you will come to appreciate the contributions of others.
Another point to make is that the user that made this change, is according to wikitree, your 5th cousin on your mother's side. It would seem that you both would benefit in collaborating on that part of the tree you both share.
Many people seem to have difficulty in adjusting to the expectations of working in a collaborative effort. We presume that any mistakes made are unintentional. I would suggest some private messages will smooth things over,.