No sense in getting excited about someone living in upper class El Cajon being a right winger.
You are right that somebody probably reported them. It could have been someone growing marijauna who didn’t want them around or it could have been the king of the hill who just built a huge McMansion and didn’t like the RV in their view. Either way the people got kicked off rural, private property when they were not hurting anybody and more importantly had found a reasonable, suitable and affordable way to live.
What was their offense not spending money? Not raising the tax base? Not following some nimby ideal for the local aesthetic?
I don’t see outright graft in my dealings. I See arbitrary or exaggerated impositions that become fees or costs to third parties or delay or other nusiances mostly manifested by a bullying or unresponsive and incompetent bureaucracy which is to a large degree as John said, “an interest group unto themselves”.
On the other hand I see, as you do lack of enforcement including sometimes egregious situations because the nature of the incident or offender makes it a burden on the county to follow through. So on the one hand if it is too much of a burden they turn an eye but if they can support someone important, grab a fee or penalty or create a job for someone and get away with it they are all over it.