No source of covid-19 has been found.
Similar lab leaks happen frequently.
BUT.. you're not allowed to discuss it with the undertones that you're a bad person. If you say china virus you could be accused of being a racist. But if you say South African or British variant it's okay. The mental acrobats are insane. If you suggest people aren't thinking critically about it you will be accused of flamebaiting or trolling. If you call out people who are trying to silence your comments you'll be accused of "making boring reading".
I think it should be discussed, debated and seriously considered. There is a suggestion in here to assume both the animal farm and the lab were the cause and to respond appropriately. With lack of further evidence I think this is the best idea.
Maybe if the US didn't have a very large number of people who are willing to harass people of visibly different races we wouldn't have to have these discussions and worry so much about our language. But we do, and we have a track record of specific races being attacked when nations that have a majority of that race become embroiled in international issues.