Is the Extraterrestrial Alliance losing control of the alien Greys and is their hybrid program just as alarming and dangerous to the Anunnaki, the Arcturians, and the Reptilians as it is to humans?

The answer here is “no” to both. The alien Greys are quite disciplined. While their desires have increased through the ages with growing knowledge, information, and personal sophistication through gradual improvements in their capabilities, they are subject to strict oversight and management by the Arcturians still, as well as the Reptilians and Anunnaki who very frequently have business with these beings.