We're talking about Booster doses now -- not the initial vaccine push. The sentiment in the US changed somewhere in late 2021 and weirdo antivax grifters started gaining prominence so our booster rate dropped off a cliff;

https://ourworldindata.org/explorers/coronavirus-data-explor...

Which neatly lines up with our already high Covid death rate diverging further from the EU's:

https://ourworldindata.org/explorers/coronavirus-data-explor...

So yeah, the US CDC is pushing for more boosters!

Vaccines are one of the greatest inventions in the history of mankind and we're so starved of common sense that innumerate people spend their energy convincing others to not take them based on things they don't remotely understand. It's absolutely insane.