To the Chinese public, the US and Canada are well known as the two biggests hideouts for the Chinese criminal on the run.
Have you heard of the Operation Fox Hunting in China? It is specifically to get those Chinese criminals wanted by the Interpol to surrender themselves to the Chinese authority from where they are hiding, including countries with which China does not have extradition treaty, and countries where law enforcement is weak.
Having the Interpol to issue warrants on those criminals is as publicly as China can go in seeking cooperation from the host countries, barring extradition treaties. Yet the US, and its accomplices, take this as opportunity for bargaining with China. They usually drag their feet in working with China. Most cases hardly move after years of delay. Some even took decades to complete. They also often use "political oppression" as an excuse to altogether refuse to extradite certain criminals. Guo Wengui, for example, has been wanted by the Interpol since 2017.
Lü Lei, the mastermind behind the Henan rural bank scams, will likely have his name added to the list of outstanding warrants.
On the other hand, it is hard to tell what the US, Canada, and other countries to a less degree, will end up with in long run. This many criminals who have escaped their due punishments are poison or even ticking bombs to the society. Apparently Guo Wengui is now a troublemaker, for example. Reap what you sow.