“Studies of people who have been tested for actual virus have shown that about 3/4 of those who initially have no symptoms develop them later.”
What “studies”? Show me a link to a credible well known source. And when does “asymptomatic” mean only asymptomatic in the beginning but later show symptoms? A person is either asymptomatic or they are not.
You seem to insist on coming up with different “facts” to suit your preconceived idea about this sham of a “Pandemic.”
Um... every time you catch something, there is a period when you are asymptomatic, called the "prodrome." No one starts coughing and sneezing the second they are exposed to an infectious dose of cold virus.
FYI, if it weren't for studies like this one that show that Covid-19 spreads from asymptomatic/presymptomatic people, we wouldn't have widespread lock-downs to prevent the virus from becoming endemic.