Ummmm I think he is exercising his Democratic right to suggest an alternative use of the land as a resident of the area.

Your claim that all of the land, including football pitches, play area and allotments "was always designated for burial". There's no legal basis for this as far as I can see. So any usage change of this land will each have its own planning / change of use application needed to be done.

Each application should go through the normal democratic/council process. No single entity is entitled to the land. Nobody should be personally attacked for objecting to any proposal.