We had a sister in Christ who passed on. She was the mother and the only faithful Christian in her family. Her eldest son has strayed away from his promise to God. We tried to win him back but with no success. Now that his mother has passed on, he does not allow the church to have anything to do with her funeral. Do we just allow his wishes, or do we have any right or responsibility to the burial of his mother?
Without a doubt, her son is being rude to the members of the church who wish to honor her memory. However, there is no authority for the church to conduct a funeral, that is a family responsibility. If the family wishes to be alone in their grief, there is nothing you can do about it.
If the members of the church wish to gather to remember their sister, they can do so on their own.