Wildlife make a park.
Human amenities can be found in abundance in nearby towns, for those who want them. I don't have a list of all of the species that we have driven to extinction in the Bay Area, but I am sure that you do. But, of course, we don't have to make our homes in the parks. Administrators of wilderness areas long ago began a quota system, in order to protect those areas from destruction. I haven't seen any discussion of exactly why you need to raise more money.