Vaccines do lead to a reduced chance of getting infected, and also reduce the chance that you will yourself infect someone else. That has been shown again and again in real-life situations. But, yes, they do not stop transmission completely.
Situation here:
69% of adults in Flanders have now received the booster. Across Belgium, hospitalizations have increased somewhat, but IC cases have dropped, even though record infection numbers have been recorded for the past 10 days or so. Of the people in hospital where they know it's the omicron variant, 0 of those 60 or so had been vaccinated, and the median age was around 48. Omicron has seemingly stopped at around 90% proportion of infections, meaning that Delta is not fully suppressed, which worries some virologists.
I also read an article with experts from the US and Europe explaining why the situation in the US with Omicron was much worse than in Europe:
- Americans are less healthy - more diabetes, more overweight
- less Americans are vaccinated, and less have received a booster
- healthcare is more uneven in quality (and much higher in cost)
In any case, it should be now be absolutely clear that vaccination is working very well to significantly reduce covid health problems. Those who still deny this, are - in my eyes - fanatics driven by ideology, with disregard for facts.