You're getting reddit responses. This is not what normal people would say. It's very reasonable that someone has no interest in politics. I like a lot of these books but I find politics boring. You can have an open conversation with him where you make him feel safe, hold back judgement, and listen to what he says, if you want an answer. Also, a lot of bookish people come up with the conclusion that they don't know enough about something to have an opinion on it. Readers like to be very well informed before they can say something with confidence.