Why do you think this? What evidence would convince you that they are sincerely trying to protect children?
Helen Lovejoy wasn't lying, she was sincerely (but irrationally) concerned for the children.
HNers believe this conspiracy theory about their own governments (that they are deliberately secretly plotting to be despotic, and using the cover of trying to protect children) with no actual evidence, just a lot of winks and eyebrow wiggling. Complete abdication of rational thinking.