Your parents sound like my mother.
She voted for Trump and spouts conservative views but she faithfully watches the ABC Evening “News” every evening. She takes everything they say as gospel and no one can convince her otherwise.
We have had more than one argument when I point out the lies and leftist propaganda that comes from their nightly telecasts but she will hear none of it. My blood pressure automatically rises when they come on.
Unfortunately, she is an extremely stubborn person who thinks she is always right and one can’t tell her anything.
For family get-togethers, my dad will bring up politics but my mom tells him that they agreed they would not bring it up but he does anyway.
They know I will speak up, one sibling refuses although she sides with me and the other doesn’t want to harm the relationship she has with my parents.
Of course, my parents think I am off my rocker when I speak up but I am quick to let it go.