“ you are more likely to contract it if you are vaccinated than not.”
No, you are not.
The other study that you refer to, I believe was a (Dutch or Danish?) pre-print, not yet peer reviewed. There was one group in the data where there was a higher then average incidence of infection among those who had been vaccinated several months prior. The authors of the study specifically addressed that, acknowledging that it was a small, non-random sample of the early cases of Omicron into their country - International travelers who disproportionally had to be vaccinated to fly. They attributed it to a statistical anomaly due to a sample with clear confounding variables, rather than some causative mechanism.
On the other hand, many studies, and large epidemiological results from South Africa, Israel and the UK; show vaccine protective effect against Omicron. Vaccines are just marginally less protective against Omicron. They do not raise the risk of infection - they lower it. Out of the fewer breakthrough infections that do occur among the vaccinated (or those previously infected) a higher proportion of them tend to be Omicron, because it is more immune evasive.
If you do happen to get a breakthrough infection, it is more likely to be Omicron - not that you are more likely to get Omicron, if you are vaccinated.