The argument
The Garden Doctrine holds that humanity is beautiful, flawed, and overgrown, and must be tended. That means safety and medicine. It also means ruthlessly pruning the weeds of dissent and treating the diseases of passion and ambition. Life in their arcologies, the Atriums, is serene, maintained by constant invisible atmospheric conditioning and psychological guidance.
What they can do
Absolute mastery of GenMod technology. Their Flesh Forges grow bespoke organs, engineer crops that produce medical compounds, and produce artificial humans as a disposable labor force. Their Gen-hanced soldiers are augmented at the genetic level. The long-term project is to cure humanity of its self-destructive nature, possibly by releasing an airborne retrovirus that dulls extreme emotion and promotes compliance worldwide.
How they see you
Through a biomedical lens. Waster settlements are un-curated ecosystems suffering endemic cognitive decay, which makes them either study sites or, to the hardliners, candidates for ecological reclamation. They find the sects fascinating as case studies in mass psychosis. They consider the Null Guard dangerously misguided and quietly covet their immunity to psychic contamination as the ultimate prize for genetic research.
The fracture inside
Nurturers against Pruners. Both accept the Garden Doctrine. They disagree about how much of the garden has to be cut away, and the Pruners keep being proven correct in the short term.
Helios forces are resilient and hard to finish, with regeneration and augmentation effects that make attrition strategies fail against them.