Which conspiracy theories are now plausible claims and which accepted facts? There is a substantial difference between these two things.

If you are going to make such claims about the lack of efficacy of vaccines you really should back them up with robust scientific studies.

The difference between conspiracy theory and truth is just 1 year. Keep your conspiracy tehorist friends close as they will tell you what is coming and remove your coincidence theorist friends away as they will manipulate you with their delusions.