Gender simulator entities infiltrate other species assume similar morphology and use powerful MK tools and basic endocrine chemistry foster the trans- cult.
The effect of a small socially dominant trans activist (GSE) populations in driving majority "opinion" neutralizes that species functional reproductive capacity. At that point a species may be numerous but functionally extinct.
https://en.wikipedia.org/wiki/Functional_extinction
Functional genetic extinction for the target and ultra low material cost to attacker in this covert, low kinetic conflict/ rapid conquest extinction scenario.
The Magna Mater tranny cult has taken down empires before
>The cult of Magna Mater arrived in Rome sometime in the 3rd century BCE, towards the end of the Second Punic War against Carthage. There are no contemporary accounts of its arrival, but later literary sources describe its import as an official response to meteor showers, crop failures and famine in 205 BCE. The Senate and the Syblline books identified these events as prodigies, signs of divine anger against Rome and warnings of Rome's imminent destruction, which should be expiated by Rome's official import of the Magna Mater and her cult