Common law marriage also can be a problem in probate. When I lived in Texas I got married specifically because we were worried about my husband's estranged family contesting our joint property if he were to pass. Or contesting our PoA in the case of medical decisions.
I am just waiting for him to blurt out that he did this new thing called a PET scan, can you believe it? A scan for your pets. Nobody ever heard about this thing before, but he passed it with flying colors.
I had a friend who was married to a veteranarian who worked with exotic animals. They were constantly fostering bird rescues. He told me once he fell asleep on the couch and woke up as a parrot was reaching for his glasses. He said he knew this bird wouldn't intentionally hurt him but seeing a 4-year-old child with a can opener on its face reaching for him was pretty scary.
This is a memo, not a law. It will never make it before a judge. Targeted groups won't be charged, they will instead be detained, possibly indefinitely, but certainly long enough to fuck them up. They will also use this memo to monitor communications, pull financial records and otherwise harass people. They will use the label to force financial institutions to freeze assets.
Davis' case was poor and she is intrinsically unlikable. I would expect a case with a novel argument to be taken up.