Your understanding of how the development of a vaccine is completely misguided.
No, It is not my understanding that is misguided. you need to dig further than a ra ra group spreading misinformation about how it works. They leave out KEY facts into how they are developed.
1. I don't care if the trial last 10 years plus when their is NEVER EVER a control group. There is never a non vax group being looked at... only VAX A being tested against another vax (or a vax that is empty of the antigens but still has every other component of vax A) This is standard practice and you should understand the reason this is such a big deal. This isn't a true long term study. A control group is always necessary.
2. No one who has any issues whatsoever are allowed in the group being tested. Another words, only if you are already one of the healthiest people out there will they allow you to be in a trial. YET, they then will tell every person on the planet (who might not react like the extremely healthy people) to all get the same amount, same size, same timing with no regard to this important issue.
Also, it isn't ONLY how vaccine become licensed.
Ethics should be honestly looking at what happens to its people (the consumers) once it is licensed and the rules that follow. Being told Vaccines are the only thing that seem to be keeping us from being wiped off the face of the world :
that government's use their power and force to make them as mandatory as possible by trying to remove everyone's choice,
are not required to give you any information or can lie about all of it
have no real reporting agency (see quote from FDA commissioner) to even have the slightest clue on real reaction rates to help keep plausible deniablity and
then make sure that everyone involved in the entire process are totally not liable/accountable in any way to those same people for any problems that occur, purposeful or by accident.... isn't ethical.
"Those who are afraid retreat.
Those who are brave grow greater.
Never fear, always grow."
I'm afraid you have already convinced yourself that the procedure is totally corrupt. Although I don't conduct research on vaccines (other than online for my kid) I do know through colleagues how the process works. I noticed you haven't done your research. Control groups are used to determine the effectiveness of vaccines. They might do some screening of participants sure. This should come as no shock, scientists can often determine right of the bat some people the vaccine may not be appropriate for (allergic reactions, etc.). Here's an example of the use of control groups for a diphtheria vaccine http://www.livinggreenwithbaby.com/parents-guide-to-children-vaccinations/
(mind you, this is a website about green living). You can find many other examples online. Once the vaccines is proven to be effective through randomized trials and the vaccine is approved for general use, observational studies follow to double check effectiveness and adverse events. Now, after the vaccine is implemented for general use, randomized trials to test the vaccine are not conducted. Why? It would be unethical. The vaccine has already been shown to work before approval!! So, it would be inappropriate to give some children the vaccine and others a placebo to check for adverse events (that would mean intentionally exposing the unvaccinated children to risk). By the way, this is general policy, around the world, not just the U.S. To check for adverse events, the best one can do, is perform observational studies.