How to stop neighboring campers from

Last summer I had reserved a space at a lake resort for a month, about an hour from home, where I'd go back & forth (spend 4-5 days at the lake, then go home for 2-3 and then back up). The spaces were so close together--I am a 'newbie'. If some folks pulled into their space with their motorhome, then our awnings were almost touching and we were 'face-to-face'. Might as well have been in someone else's living room. The biggest problem was with folks who didn't respect our space. We had a lakefront space, and the families next door figured that our space at the back (the lake) was theirs to walk right behind our trailer (like 2 feet away. Because of how the space was, there were huge old willow trees right next to the water, so our 6 feet at the back of the trlr wasn't level because of the tree. We had to put the picnic table behind the trailer, and these folks' kids would literally climb over our table to get to the dock!! We asked them politely to go up the to road (the front of the trlrs) and they looked like we were asking for the moon. We set up our floaties in the way and they walked over them!!! I was standing next to the water speaking to the nice folks on the other side, and here came the mom from the other side and actually pushed us aside to walk by to her campsite. I spoke to the management, but also was worried that those rude folks might do something to sabotage my trlr when I left it to go back to town. The mgr did speak to them and I later overheard them talking to their friends about how 'rude' I was. Another rude family brought 4 dogs--2 who'd never been camping before--and this was the 4th of July weekend! The poor dogs were so traumatized! They whined constantly, and then their owners did nothing but yell at them the whole time. I was sitting in a lawn chair with a fishing line in the water, and the woman threw a stick right over my pole/line for the dog to fetch! On my space! Some folks just don't have any sense of personal space! While that resort had a beautiful setting, I will never camp there again because of the too-small sites.