Obvious answer: institutional backing.
But I wonder why troons succeeded in garnering this kind of support while furries failed. I pull a complete blank on why. If anything, the ridiculousness of denying one's own gender is just as ridiculous as denying one's own species.
The similarities are uncanny:
- Origins in the pride/gay rights bullshit
- Delusions of self: "I am not what I am, I am what I imagine."
- Cluster effect: exposure to trannies creates trannies, just like exposure to furries creates furries.
- Insufferable personalities and overbearing self-inserting into normal spaces.
- Claiming negative reactions of the previous point as prosecution. "Literal Trans Genocide" vs "Fursecution"
- Expensive conversion to one's perfect form: Chopadickectomy vs full body Fursuit.
- Abject degenerate sexual tendencies with zero self restraint
- Subversive even to the concept of normality, seemingly proud to be a deviant.
- Riddled with mental illness: anxiety, depression, prone to violence
Good question. Timing would be my answer. Furies were at their height when it was still acceptable to mock degenerate idiots. By the time the victim mass hysteria came around, they already had their time in the spotlight and had been rejected by society. Though you should probably rephrase your question to "why did they fail, so far" because it's totally plausible that they can make a comeback.