I think the trials of Corona mRNA vaccines in the early 2000's gave them an idea.
Knowing that Ivermectin and HCQ worked to hinder Corona Viruses, they hatched a plan to give these vaccines to people with the express purpose of making them vulnerable to Corona viruses.
They purposefully vilified HCQ and Ivermectin. Pharmacies won't dispense. Doctors won't prescribe. I think eventually, these two drugs will be impossible to get.
Unless your Social Score is right. It's the ultimate coup for Communism. Everyone "vaccinated". Everyone will obey anything -- just to get their meds.