I’m in a very similar spot. My mom is starting to slip mentally and the further she slides, the more hateful she becomes. Before she knew and were friends with many diverse people. Now she hates their kind. Gays, trans, immigrants, blacks, etc.
I theorize the more you decline mentally, and lose your ability to critically think, the most convincing arguments are most repeated ones. I’ve noticed that the strength of her opinions are usually based on the frequency that she hears it. I can predict how often she’s gonna start ranting about black people, trans pedophiles, electric vehicles by the amount of content she’s watching. The more she watches, the more she argues.
I can’t seem to break her out of this cycle. The right has thoroughly brainwashed her that Democrats and leftists are scum and should only exist to be shamed and exiled. If an opinion or fact is even slightly related to democratic values, she just shuts off and rejects it.
She had a PhD and was extremely successful but now she has difficulty just using the oven. There are days when she is lucid and relatively straight thinking but other days she is entirely unintelligible and relies heavily on hand gestures.
Sometimes I wish she would pass. She causes so much pain for everyone around her (my sisters went no contact) and she is in pain herself. She is so extremely stressed and fears that antifa is going to burn down all of the great American cities, the homeless and blacks are going to ravage and loot everything and the left will be complicit since it’s their “ultimate goal” to destroy america.