The other factor is age, for example, 97% of the unvaccinated people in the data-set in the 'variants of concern' bulletin cited (https://www.gov.uk/government/publications/investigation-of-novel-sars-cov-2-variant-variant-of-concern-20201201) were under 50, compared with 55% of the double-jabbed.

So, looking at over-50's only, the death rate in unvaxxed is around 6.5% (437 out of 6724), while the rate in the double-jabbed is around 2% (1054 out of 51420). And as the previous poster remarked, that's only among people who have tested postive. If you take into account the lower infection rate in the vaccinated population (for example, see https://www.gov.uk/government/publications/covid-19-vaccine-surveillance-report), then it's looking even better.