When it comes to setting boundaries with older people, it’s important to acknowledge that this will require waaaaay more energy from you than it will them. In fact, you have to expect that he will not only ignore them but probably push them just to see if you’re a real one or not. But that doesn’t change the fact that you have to be clear with him about how you feel and what will change if you go this route.
You can let Grandpa know, “I love you so much, and I don’t get very many grandpas in this life, so I’m trying to be patient with you, but I will absolutely not discuss politics with you or listen to you discuss it with anyone else. If it ever comes up, I will hang up the phone or leave the room.”
