Better than dino piss at eradicating dino predation is NASA tipping an asteroid out of its orbit that is about 3 times bigger than the Chicxulub rock and sending it to North America. Then there will be no escape like back in the good old days of the late cretaceous.

However, it might be cheaper to have some fearless Asian leader declare that there are no more dinos and be done with it. The kind of eternal bliss we need right now.