There must be some sort of tactic ...

.
... that the victims can use to counter-act this sort of abuse:

New Jersey police and Dept. of Children and Families officials raided the home of a firearms instructor and demanded to see his guns after he posted a Facebook photo of his 11-year-old son holding a rifle.

“Someone called family services about the photo,” said Evan Nappen, an attorney representing Shawn Moore. “It led to an incredible, heavy-handed raid on his house. They wanted to see his gun safe, his guns and search his house. They even threatened to take his kids.”

And by tactic, I mean filing an 18 USC § 242 action in federal court*. If you have CPS telling the po-po to take action, then you can file a § 241 action.

Yeah, it'll get thrown out ... until someone files a case that's compelling enough and in the right district to have a judge want the government to justify its' actions. And maybe that case ultimately loses ...

Then again, maybe not. h/t Jeff

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*I have no idea what's involved  in doing this; I just know it needs to be done.