Worrying about being near an unvaccinated person is going to drive us all insane, we have to get on with things. Everybody will judge for themselves what is right for them.
The link given by Alegrias states that there is a reduced risk of infection from vaccinated people, even if they do have the virus, although that wears off with time.
'Judging for themselves' is what the OP and her husband want to do, and want to have it respected by their relatives.
The relatives want their choice to be respected so they should also respect the OP's choice.
What is a reasonable minimum spend for an online grocery delivery??
Why Are Blokes Obsessed With Noisy Gadgets??
Angela Rayner lashes out and calls Sunak “pint sized loser”.