The corona virus is said to be in the air and has some limit of time to spend in the air.
But the virus keep spreading even if it cant spend long in air or anywhere.
After all the lockdowns in every country, the virus still keep spreading.
How does COVID-19 spread?
People can catch COVID-19 from others who have the virus. The disease spreads primarily from person to person through small droplets from the nose or mouth, which are expelled when a person with COVID-19 coughs, sneezes, or speaks. These droplets are relatively heavy, do not travel far and quickly sink to the ground. People can catch COVID-19 if they breathe in these droplets from a person infected with the virus. This is why it is important to stay at least 1 metre (3 feet) away from others. These droplets can land on objects and surfaces around the person such as tables, doorknobs and handrails. People can become infected by touching these objects or surfaces, then touching their eyes, nose or mouth. This is why it is important to wash your hands regularly with soap and water or clean with alcohol-based hand rub.
WHO is assessing ongoing research on the ways that COVID-19 is spread and will continue to share updated findings.
^This is the common misconception of everyone that coronavirus is airborne but until now WHO hasn't updated their findings with regards to how the COVID-19 spread, it still is from person to person contacts that is why majority of the countries seriously affected are practicing home quarantines and social distancing to prevent as much person to person contact possible.
Right now there is no time in believing in conspiracy theories and "what ifs" since if the government played along they will lost focus on actually trying to find a cure but the people behind it which you are claiming. I know thousands of people are getting infected everyday and the best chance we have is to only find a cure as well as follow the government in the quarantines that will take place.