Covid vaccinations have only been proven to protect the vaccinated from severe outcomes. They don't prevent infection or re-transmission. There's no valid claim to pushing this on those that don't want them.
And do not be silly: healthy food is way more expensive per calory.
The VE is reduced with delta, but its still nonzero (most of the studies of what it really is are still incredibly poor though, but nothing has show it to be below 50% VE against infection).
The initial comparable viral load studies are also all bad. All they did was compare Ct of RNA loads. We now know that there is less infectious virus in vaccinated individuals, and that Ct values themselves decline faster, which indicates they're producing more viral debris -- we expect studies of transmission to show that they transmit less. Older studies from earlier this year against Alpha found that 80% of vaccinated breakthrough infections produced zero transmitted secondary infections with the other 20% only infecting 1-3 other people.
That is sufficient enough impact on infection and transmission to end the pandemic if everyone was vaccinated.
Unfortunately, everyone, including many scientists are panicking in the face of uncertainty over the delta variant and assuming the absolute worst and spreading worst-case messages which are portraying vaccines as not being worthwhile, when they're still effective enough.