I have a good relationship with my dad now but that wasn’t always the case. It’s too long a story for this comment but I’ve confronted him a few times over the years about various things. On one such occasion, he said something to the effect of, “Why don’t my kids ever want anything to do with me?”
I said, " I love you Dad, but you’re an angry dick about everything and you always have been. Would you want to spend time with your dad if he was like that?" His dad was exactly like that. He didn’t say anything but I knew I struck a nerve. He’s worked on himself a lot and is a much, much better grandpa than he was a father.
I don’t know your situation and you can’t change your family members behavior. That’s on them. But sometimes it’s ok to let them know what their behavior is doing to everyone else around them. They may not understand that. And if they do and just don’t care, then they’ll have to deal with the consequences.