I wouldn't call that skim boarding. That's surfing WITH a skimboard. Like Kelly Slater surfing on a door.... its not "dooring" or door boarding (I'm creating a new sport if so) its surfing... on a door... in a suit.
When I think of skim boarding I think of pre groms throwing a skimboard on the ground in water and attempting to jump on it and to either perform a trick with incoming waves or miss and fall on their head.
I give them credit when they are good... and when they fall and get up with no sign of spinal injury I enjoy in the comic routine and praise their ability to not injure their neck.
Your plight is falling on deaf ears here. As a lifelong shortboarder, I haven't once had a problem with a skimboarder, even when surfing shore break with skimmers around. Loggers who do giant fades, trying to keep you off the wave even if you're going the opposite direction on the peak. Ya, had many problems with them.
i only respect skimmers in mexico,hawaii, california, etc. where they literally get barreled on some heavy shore breaks. Went to Waimea that was impressive. but other than that just get out grab their skimboards with too many traction pads and starting beating them with it.
We just had the South Side Shoot Out event this past weekend. It's a pro/am contest so there were about 150 of the best skimboarders in the world here and still here. Skimboarders love liners like the naval jetty where the sand builds up nicely in the summer. It definitly can be crowded when it's on. Survival of the fittest no matter what water craft your on. I say bring all your boards and grab whichever works best.
Check some footage from last september: https://vimeo.com/66614706
I am an avid skimmer and surfer. I skim an exile or my herlihy and it definitely helps your surfing. Like others have said, you're probably surfing when the waves are skimmable so don't think you're the only one allowed to ride the waves. Go get a skimboard and gain some respect.