SA is already defeated. You just didn't get the glory of doing it yourself.
It has no purpose, no direction, no cohesion. Ask 90% of astroists about:
Asylon: meh
Ecclesiastal astroism: meh
Internal reforms: meh
There is no competing religions. And that's not because there's a single overwhelming religion, but because there are none. You can't "compete" with an entity that does not strive to achieve anything.
The forces against Asylon and its cultists are not religious ones.
You keep acting as if you are some underdog out to fight some evil hegemony, but neither of these have been true for a great number of years.
