It is absolutely okay to not get vaccinated! And if your family shuns you for that then you should question your family and the quality of their relationship to you. Especially because everybody who is afraid of Covid can get vaccinated ... so, then they are reasonbly protected. If they are afraid and not vaccinated then they can ask you to not seek physical proximity. I mean that's fine - but that's not shunning.

Also you do not have any resonsibility to do that for society. The society we live in is not even close to the level of solidarity and empathy to demand anything from an individual beyond respecting the law and paying taxes.