Whether or not dangerous animals should be killed is a complex and controversial issue that depends on a variety of factors. Some people may argue that dangerous animals should be killed for the safety of humans, while others may argue that these animals have a right to exist and should be protected.
One factor to consider is the impact on the environment and ecosystem. Some species, even if they are dangerous to humans, may play important roles in their ecosystem and the loss of those species could have unintended consequences.
Another factor to consider is the circumstances of the animal's behavior. In some cases, animals may become dangerous due to human interference or the animal being injured or sick. In these cases, it may be more appropriate to try to address the root cause of the animal's behavior rather than simply killing it.
Ultimately, the decision to kill a dangerous animal should be based on a careful consideration of all relevant factors, including the safety of humans, the impact on the environment, and the circumstances of the animal's behavior. It is also important to consider alternative approaches, such as relocation or habitat modification, before resorting to lethal measures.