Well, if they were applying eugenics and putting crap in vaccines for this purpose, most of us would not know, and would happily take the vaccines we are convinced are safe and we need. It is still eugenic - just eugenics by trickery rather than eugencis by force. The result is still the same. Indeed trickery and deception is probably a better route for eugenics that force - with force people might rebel, with deception, people actually want your product because they do not know any better.
Food and water supply could be other ways to apply eugenics without physical force.
All of the above is hypothetical - I do not think they are using vaccines for eugenics - I am stating the above to say you do not need mandates or force to apply eugenics.
Yay! Hypothetical! (And BTW, I lied about leaving, I was just lurking until it came around to this again.)
It still is beyond my reckoning what vaccines could possibly (or hypothetically) have to do with eugenics. If they want to vaccinate *everybody* what eugenic-y thing could hypothetical-"they" have in mind?