Well, I can't say they will actually take up arms against social workers but it is a fear. Many parents fear the current trends from parental authority over children to state authority over children. If you don't see that trend, you're not paying attention. There are many parents who feel they have reason to fear home-schooling will be outlawed. There are parents who fear that children are being given instruction or choices at school that parents are not privy to and that would traditionally have required parental consent and might be considered brainwashing by some parents. Some parents fear that the this is the tip of the spear and believe they would do anything to protect their children from being harmed as they conceive of harm.