J&J is at least 57% effective, although I didn’t see how effective the others were in terms of percentages with the South African variant.
First and foremost, thank you for getting the vaccine.
As far as your family member and friend reacting, it can happen, but for the most part, the benefits outweigh the risk. As for those who are against getting the vaccine because it won’t protect against variants, at least you will be in line for a booster and they’ll either have to start the process from scratch or risk the impacts of the variants. Whether or not to take the vaccine is a personal choice, but I think those who get it will be on the right side of history for defeating this pandemic than those who don’t get it.