You currently appear to be participating in an edit war. Users are expected to collaborate with others, and once it is known that there is a disagreement should discuss the issues on the relevant talk page rather than repeatedly undoing other users' contributions. If necessary you can ask for more input at Commons:Disputes noticeboard. In some cases it may be appropriate to ask for temporary page protection. If you continue to edit war, you may be blocked from editing - even if you are right about the content issue.