If the origin of the outbreak was the wet markets from infected imported bats, we would be able to detect earlier versions of the virus within market animals that should have spread around prior to it jumping to humans. To my knowledge, there is just no evidence of its history in the markets. Yes, viruses can jump species, but it takes time and we should be able to see its history. The lack of information and evidence here is apparently enough for a lot of virologists to doubt Covid's origins.

I don't think that virologists would be debating the origins of Covid as heavily as they are if the situation was really as clear and simple as you make it out to be. If you claim to have an understanding, you may be coming to that conclusion with valid points, but you are ignoring many factors and the arguments surrounding them. We don't know what happened.