Skydiving is an "Aviation Operation" and equal access is provided.
Yes equal access is provided. However, this in regards to take-off and landing of aircraft at the airport. Permission for skydivers to land on an airport requires the airport managers permission. If that is denied then skydivers can not land on the airport.
FAR Part 105.17(b) Unless prior approval has been given by the airport management, no person may make a parachute jump, and pilot in command of an aircraft may allow a parachute jump to be made from that aircraft-onto any airport.
Blue Skies, Jim