My old man has slowly morphed into a Tory as he's gotten older. That's not an issue for me but I do expect him to be able to give solid reasoning for it.
He just seems to be really gullible now compared to 20 years ago, always quoting propagandish stuff from the Daily Mail and getting annoyed when he can't back any of it up with facts or examples. He just told me Corbyn's a horrible person so I asked why and he said he voted against his own party 200 times. So I said, "oh yeah? Well he's been in politics a long time, how many times did he vote with them?" And he didn't know the answer. His reason for liking May is "she looks like a leader" and has been brilliant over the last few months, but when pressed couldn't give one example of said brilliance.
So yeah that's the level of political rhetoric in my family these days.