COVID led some of my family into being antivax and the ones who already were just went deeper and bought into QAnon. Ny partner is immunocompromised. Willfully making choices that are dangerous to the general population is where I had to draw the line. It's unlikely my kid will meet many of their cousins. I just can't trust their parents and the things they say are comic book level conspiracy.
My story isn't unique. Geography isn't the only thing preventing interaction with extended family, some of it is the deterioration of family because the world has gone dumb.