Ya, they so dum they tried to buy me out for one billion dollars. You no wat I tolded them? I sez 2 them no, keep your filthy fiat toilet paper!
Most arguments are about "why should they invent an open source project, that could interrupt the banking system?", which is understandable. Shouldn't they protect their system including national banks?
Bitcoin would threaten the banking system if:
1. More than a fraction of one percent of the population used it.
2. That fraction of one percent was otherwise productive members of society, not child-like criminals stealing from each other.
3. IRL adults considered Bitcoin to be more sound, as a store of value, than Beanie Babies (which are the REAL threat to the banking system, with NSA spending billions in taxpayer money to discredit Beanie Babies and suppress beanie trade).
Oddly enough, those parameters aren't met, so bitscoin is used as a honeypot, corralling the world's most inept criminals into an ecosystem where their shenanigans are monitored on the blogchain and this forum. On computer screens, by a couple of chubby agents who are otherwise useless, too weak and fat to actually be useful in the field, dealin with smart IRL criminals.