Beetle has the the great defence mechanism :aka

This beetle has the defence mechanism by which when a toad eats it ,he have to take it out because the beetle aka release a chemical toxin that is not tolerated by toad but can u imagine that after 88 minutes the toad vomitted that beetle and it is still alive.
The beetle releases this toxin from its back part
May i think it is good for their mechanism but what happens if all beetles will be secreting that toxin ,we know that the life cycle goes on and the evolution keeps up. The toad will die and the population of them decrease and also effects the ecosystem as well.Other species that depends on beetle would becoming extinct so as far as my concern that need to a big thing.
Please comment your views on this....