Biogenetically engineered virus?

Must there be a conspiracy theory behind everything bad that happens?

Latest conspiracy theory heard from a true believer: COVID-19 was bio-genetically engineered by the Chinese government. Why would they want to shoot themselves in their own foot? To reduce the population of course.

I’m thinking, what? You don’t think nature is smart enough to create a virus like this on her own? If something bad happens in nature it must have been some evil person or government that caused that bad thing to happen?

Must there be a conspiracy behind everything bad that happens?