You can love your relatives and still change the subject.

Loving someone does not oblige you to follow them into every topic. Changing the subject is not dishonest or cowardly, it is deciding that this particular conversation is not the one you want on a Sunday afternoon. Families often have two or three subjects that go nowhere good no matter who is right. Stepping around them is a kindness you do for both of you.

Have one redirect ready before the next family meal: a question about their garden, their job, the drive over. Use it the second the familiar topic starts. Asking people about themselves ends almost any argument before it begins.