I agree it has become difficult to talk to people with different political opinions than my own. I just think the statement suggested was logically too strong, and entirely non applicable in very important failure modes. There are often legitimate reasons why someone believes what they do, but sometimes the belief is "I think there should be no consequences to murdering someone like you, because you're not worth the social resources you take with your disability", which was a belief expressed to me, and I need to protect myself emotionally from people who genuinely believe I should be dead.