Ancestors of the COVID-19 haven’t been dead for a million years though. If COVID-19 has natural origins, then the ancestors should still exist in nature and thus should the discoverable. Given that the ancestors must exist somewhat close to humans for transmission to occur, it’s not unreasonable to expect them to be found given the intense amount of resources dedicated to the search.

And again, I was asking for specific evidence of a natural origin. Evolution has plenty of evidence even without living common ancestors between primates and humans.