This did not get to the bottom, the police will visit all your family members actually. You will simply give up and shut up as the cops will harass/threaten your family members. It's a common practice for many years and it's getting 10X worse under Xi, who is said to be the designer of "Culture Revolution 2.0" these days, who already painted every other countries(especially USA) to be enemies(except for North Korea, Russia, Iran and Taliban).