There was problems (deaths and side effects in significant numbers) in the clinical trials but they were approved anyway, they call it acceptable risk. Yes, we have seen millions of people had their health negatively affected around the world.

If 5-15% of the vaccines are deadly doses, the other 85% get saline solution and become advocates of the vaccines, claiming they had no issues. With every subsequent booster someone takes they are increasing their chances of getting a deadly dose from one of the deadly batches.

One study of the reports found 5% of the batches accounted for 100% of the worst negative health side effects.

If they killed everyone at one time that would be noticeable, instead they kill 5% in every dose and that goes unnoticed, well by some. Not to mention all the people with long term health problems that are not immediately visible. 5-10 years later people could drop dead and by then their death is not associated with the 5 mRNA they took 10 years ago. Hell you could drop dead within the hour after the mRNA and you will still struggle to convince the medical establishment that it was the mRNA that caused it.