For the second statement there are two assertions, that the country is mostly vaccinated, and that no herd immunity ever showed up. The country is mostly vaccinated, so I think you must be questioning whether herd immunity showed up.

I do think some amount of immunity showed up, if by immunity you mean spreading a little bit of Covid but not as much as if you had not been vaccinated and were unfortunate enough to get a serious case of it. But I'm not sure that would qualify as "herd immunity".