When the US says something is illegal, at times, it cannot enforce it as the actors are beyond its reach. If or when, those actors step onto US soil or a country with an extradition agreement with the US, then they will be arrested and tried.

https://en.wikipedia.org/wiki/Extradition_law_in_China

Unless you have evidence that family members are threatened or arrested m, please don’t make comments like that. It’s not useful for the discussion here.

Maybe same as US kidnapped other country's president

It's something worse than corruption, it's primarily fear and cowardice.