If the recent study that 90% of people can be virus free after 6 days of hydroxy choloroquine and azithromycin holds up, it seems like we could get through things much quicker than all that.
choloroquine is not a trivial drug. large amounts of it can have ugly side effects and can be quite toxic. exposing everyone to the virus and then slamming them with choloroquine is not a viable option.