I see you come from harsh parentage... My dad was an idiotically hard Republican and when I was 20, I just laughed in his face. After that, Mom confided that she had voted Democrat in most elections.
Did you ever confront your father about his politics? It can be very freeing. We actually got along much better after I explained my world views. He hated them, but respected me for saying what I thought.
My father wasn't as bad you you think. He was quite a vulnerable and modest man. But pro-business (having been in business with his father back in the day). My mother was a S Democrat .. not anything liberal .. she was harder than he was, it was a mother led family ;-) Same as Alexander, Caesar, Genghis Khan ...
And yes, I had to confront my father, as all sons should ... when I was 21. My mother had pushed him into childishly micromanaging her anxiety thru him, instead of doing it herself. He knew better. It was a polite confrontation, and he understood I now wore full pants, not knee pants ;-) I love him ... as I do my mother. My mother was hard on herself, but within conventional bounds ... not a feminist, though she should have been one. She wanted to be a pro female athlete (her idol was Babe Didrikson Zaharias). My father's father was harsh and reactionary ... but that was before my time. But my inspiration to technology, came from him.
I have never been a liberal in the way you think. I oppose stupidity, not any particular ideology. Pragmatism, not idealism, is my ideal. Of course I went my own way, having my own strong personality. My father was the atheist ... my mother a very nominal Christian. My evolution has gone way beyond where they went, I can only hope they are proud because of that, not because I was a cloned legacy.