As someone who refuses to read Dr. Risch's paper for bizarre reasons, you can not be taken seriously on this subject.
The Great Barrington Declaration was authored by three epidemiologists who are actual experts, and furthermore, their suggestions weren't even enacted. Yet you somehow have the ability to say their proposals (which again, were never enacted) wouldn't work and Twitter was right to censor them. Really? So now it's proper to censor legitimate opposing medical views? You might want to rethink that dangerous view. You definitely would have been among those scoffing at Galileo and Copernicus.
As for Japan, they were fanatical in preventing groups of people from gathering. And we know from the science gatherings of people were the main cause of spreading the virus.