Andy
Yes, you are right. We are all dishonest, intermittently, but this is systematic. I think it's partly a kind of narcissism, that is, a refusal to actually perceive other people, with different views, very ironic on the part of Christians (love your neighbour, and so on). Or, love your neighbour, but ignore his ideas, and try to replace them by your own.
And, as you say, none of this will make the slightest difference.