With ransomware criminals, “us” is the attacker, and “them” is everyone with a computer who might pay. Political boundaries don’t factor in to it at all. It is by nature an anonymous attack, hence the term “ransom”.
It is strange to me that almost all high-profile ransomware attacks that have been publicized in the US are claimed by the FBI to be Russian or Chinese. There are plenty of other countries with greedy criminals that know software, too.