Covid vaccines did go trough double-blind, randomized, placebo controlled studies with population size that normal scientific studies can only dream of.
As I said, vaccine testing is is exteremely rigorous.
Moreover the mRNA vaccines arrived at their statistical targets far ahead of schedule and when more data came in, the hypothesis was only strengthened. The documents are all public btw, on Moderna and Pfizer's websites.
Yes sure, you can test all that you want, even on billions on people and write thousands of studies. That's what they are doing right now. But you can't buy time for your studies, do you understand that ?
If the average period for studying long term effect is 5 to 10 years for a vaccine, how do you do that with a 6 month old vaccine ?
People are losing their mind, even rational educated people are throwing away any critical thinking to embrace the rainbow rhetoric, this is a collective hysteria crisis.
As I said, vaccine testing is is exteremely rigorous.