The truth would get out from the people if it was much worse, as it has done on numerous human rights issues over the years, Beijing and Shanghai have been virtually unaffected.
China were prepared, they know how to contain it and may even have developed agents/vaccines that they can give the public on mass to help combat it, through water supplies or what not where needed, it's not beyond the realms of possibility.
The Chinese built their first Biosafety level 4 lab in Wuhan in 2015, the French and Americans helped them set it up, it is the highest level of biosafety for facilities studying the nastiest diseases on the planet, it was common knowledge they have been working on SARS and Coronaviruses from bats at that lab in the last few years once they'd set this new lab up.
The question is was it an honest f'up and a containment breach, or was it more sinister on their part, that is the question, look how it's wrecking the economies in the west, was there motive here after the way Trump has tried to bully China since he came to office, just plausible arguments as to what may have happened here.
A hell of a lot more believable than some guy ate a bat from a market and now the world is fk'ed, that is the cover story.
At this time there is no evidence to support this theory.
There has been research that supports a natural origin.
https://directorsblog.nih.gov/2020/03/26/genomic-research-points-to-natural-origin-of-covid-19/
More evidence one way or the other is always welcome, but let’s try to avoid conspiracy theories.