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).
On a related note, we have here in the US a sudden wave of "culture revolution 3.0" with its proponents using the very same tactics. It's well known that Xi is preparing to enter the chip manufacturing business in 10 years, and since US is the only real opponent, Xi wisely chose to disarm us with the adapted version of "culture revolution". For this reason, I believe, he'll massively increase investments in pushing this movement in the coming years.
