Ah, but Lucifer . . . the more you try to talk a religious person out of their beliefs, the more they dig in their heels. (Some would say that we atheists do the same thing.) We rely on logic and science and facts, and you would think that these things would cut through the religious brainwashing, but they don't. The very fact that what they believe is not provable is one of the things that makes them hang on. The other point is that their entire concept of life and the world is rooted in their religion. It sounds like he's struggling already, and to attack that base probably feels very threatening to him.
On the up side, you still have him. You're still talking, he hasn't thrown you out. (My parents disowned me.) If I were in your position, I would simply refuse to engage him, and offer support. Let him ramble on about his delusions, pour a bit of water in his wine, and just try to show him that you care. Don't take his refusal to consider changing his beliefs as abuse.
On the up side, you still have him. You're still talking, he hasn't thrown you out. (My parents disowned me.) If I were in your position, I would simply refuse to engage him, and offer support. Let him ramble on about his delusions, pour a bit of water in his wine, and just try to show him that you care. Don't take his refusal to consider changing his beliefs as abuse.
"The family that prays together...is brainwashing their children."- Albert Einstein