Emma was a smart person. While in Afterlife, she had probably sounded out the organization's wariness toward America. After she escaped, she returned to America right away.
It was true that Afterlife didn't want to catch the eye of American organizations.
These organizations were vicious and not something that ordinary superhumans could deal with.
Afterlife didn't have enough influence in Asia or America to deter them.
Although some of the superhumans had good combat ability, most of them could only deal with dozens of professional soldiers.
As for developed countries, they liked to use long-ranged attacks the most. It was also starting to become common for them to use surveillance drones.
Regular superhumans might not even run into a regular army before they were killed by the machines.
Thus, after several failed ambushes of Emma, Gordon quickly retreated.