I have bad news for you, lemmy is an opensource project and anyone with the will and knowledge can contribute, the fact that an authoritarian government contributes to the project doesn’t change anything. Kernel Linux is widely used by the Chinese government (and many other governments) and they actively contribute to the project. Changes are not made at will, they are submitted and have to be accepted by the project leader usually after being analyzed, both for bugs and intentional attempts to create vulnerabilities. While one might question the content being posted to the instance, or the quality of the moderation, questioning the project as a whole because any specific entity contributes is hysteria.