I understand your frustration. WikiTree can be difficult to learn. It took me two years before things started to click. Since that time we have improved the process of understanding but perhaps we can do more.
First, the concept of "Ownership" is misplaced. No one owns the profiles on WikiTree, except perhaps your own. The idea is that we are growing a one-world family tree where we have one profile per person. This is one of the things that make WikiTree special. The interconnected profiles allow for many new discoveries. Rather, think of the profiles as gifts to the community.
Profile Managers (PM) have accepted the responsibility to manage a profile. That is they should be improving the profile to meet WikiTree's Style guide and Standards. The Trusted list was designed to allow others to help maintain those profiles that are close family or are part of a special project.
You should certainly be on the trusted list of your Mother and likely a PM. (Probably also for your close family members.)
The Honor Code asks for Collaboration and Communication. If you feel a PM is not responding appropriately, that they are not Collaborating, you can review the Problems with Members help section for appropriate actions you can take.
If you are patient, the issues you have can be resolved.
Thank you for reaching out on G2G to express your frustration, we can help you.
If you have not yet reviewed the New Members How-To, I would encourage you to spend some time working through the tutorials.
And come to G2G with your questions, we are here to help make your experience work.