The premise is a distraction. The serious charge against the Chinese is that they are covering up the release, through negligence, improper disposal of hazardous biological waste, or malfeasance (the last most likely in the form of a researcher selling a discarded lab animal as food -- something documented as having happened at other Chinese research labs in the Chinese state media), of a virulent, contagious virus naturally found in bats, whose habitat is about 900 miles from Wuhan, and which were brought to Wuhan for a research project (the existence of which can be verified from publicly posted job advertisements with start dates in November of last year); that their cover-up and refusal to share samples of the virus has contributed to the scale of the pandemic by preventing earlier imposition of travel restrictions, earlier work on treatments and earlier work on vaccines; and that their cynical policy of allowing international travel to and from Wuhan during a period when they had banned domestic travel to and from Wuhan represents a deliberate attempt to create a pandemic from what, properly handled, should have been a regional epidemic in one province of China. That last fact should be enough for every other nation to begin treating China as a pariah for at least a generation, or until a radical change in their government results in one which does not punish bearers of bad news (which seems unlikely as long as the government claims the CCP as the basis of its legitimacy).
This not the same thing as claiming the virus was "made in" the lab. Numerous microbiologists have found no evidence of genetic engineering, just as numerous microbiologists have found that the strains of the virus show now signs of having evolved in an intermediate host species. It's almost certainly a bat virus that got loose form a research lab.
