Edit: And just like that, the CDC link has been flagged for presenting inconvenient information. Talk about a cult.
They tend to live with adults.
> it has been shown that vaccinated adults will still get Covid either way?
This hasn't actually been shown, at least not anywhere near as universally as you're portraying. Breakthroughs were expected; what we won't know for a while (and is subject to change) is how common they are.
Your hypothesis about anti-vaxxers being hesitant to go test is definitely promising, but having a hypothesis alone isn’t enough, this kind of stuff needs to be looked into and not ignored/labeled conspiracy theories as it so often does.
Edit: just realized that even if the 69% was out of the entire population, that would still imply (on the surface) that being vaccinated is worse than not, since COVID doesn’t discriminate about who it spreads to which makes the whole population eligible to get it.
The vaccinated population is still skewed elderly, and the elderly are more likely to become “cases” than younger people in the same vaccination status. The population isn't a homogeneous blob.
Kids under 12 are 100% unvaccinated at the moment, for example. People who are anti-vaccine may have a tendency to also avoid testing. etc.