Not at all like the situation in China. In the U.S., if you're in a neighborhood with a large organized crime presence, passers-by will often refuse to testify, but what the parent is talking about in China today and the U.S. in this hypothetical future is different. In China, there is a recent history or at least public perception of victims falsely accusing good samaritan helpers of being the perpetrators in order to sue someone, even if they can't catch the perpetrator. The parent is saying that the U.S. could become the same way, except with would-be good samaritans/crime reporters not being afraid of the victims but of the police.