I guess there wre two sides to every story.
We share our runway with both gliders and normal planes )mostly pop planes but now and then a jet graces us with its presence).
There are hard rules about when and how to cross the runway at every DZ here. At our DZ you're not allowed to cross the runway if you're below 500 meters - roughly 1500 feet. Do it, and the first time you may goet off with a warning. Second time, you get grounded. The glider have a tow cable and if a skydiver gets clipped in that, it's bad news. If we' find ourselves too low to cross the runway, we land on the "motor plane" side of the runway.
We get crap for that now and then, from the pilots over there.
We get crap for opening on the motorplane side of the runway. Some of them seem unable to grasp the concept of free fall drift. Strong uppers will mean we get dropped far up wind.
Everything is done to ensure separation between skydivers and planes. However, lots of things can happen. A bad spot may put you far from your desired target. A wacky opening (say, line twists under a high performance canopy) is gonna eat away your altitude.
Our pilots clear our airspace. They're in command of the plane, they decide when it's time to open the door, or whether to go around for another round. Skydivers clear it as well, doing a visual scan as they spot. Spotting is not an exact sicence, with different wind layers doing different things.
There's been a number of casualties from mid air impacts between skydivers and planes, including jump planes. No one is interested in that. Pilots want to fly safely, and skydivers want to skydive safely. It serves no purpose to create an "us vs. them" athosphere, although it'd be naeive to think animosity between the groups do not exist. After all, both groups in a way endanger the other.
Skydivers will sometimes swoop hangars and whatnot. And steal golf carts and start big bonfires. Sometimes student skydivers will go into brainlock or underestimate winds, landing near or sometimes on the runway. Sometimes experienced skydivers end up landing close to or on the runway.
And sometimes a pilot will find himself in "skydiver airspace", speeding through directly under skydivers under canopy. We have some control but we cannot climb our canopies (except for a few seconds after which our canopies will dive sharply).
There are stories in both communities about how thos f*ed up "meatbomb" almost crashed into a plane that was landing, or how this ***** for brains Maverick Wannabe nearly flew into an entire load of skydivers.
The sky is the playground for both groups and I doubt either group is gonna stop.
Oh btw Golfer - di you ever had the fun of having a 4 way freefly group doing a head down exit from a 206?

. Out pilot dinnae like us hanging around trying to get into position, so he did the very nice "kick right rudder, look at nuts fall off" thingy
