The dad's comment strongly resembles a lot of posts that I've seen where people say that their kids won't talk to them anymore. They always leave out the most relevant information and act like some lesser thing is the actual problem. They may do it intentionally or unintentionally. It may be narcissism. It may be an inability to face reality. It may be that they always minimize their children.

But if you hear from the daughters, it will likely not simply be that he voted for Trump. We're missing out on entire lifetimes of context. There will be a lot of discussions leading up to that point. There will be a refusal to hear the children out. There will likely be a long history of emotional abuse.

And then, the last straw probably won't even be his vote for Trump, but some terrible behavior that he exhibited afterwards. These parents then go online and make up some story that lets them be the victim. You can't say for sure that this is the case, but nowhere in his post does he even try to acknowledge any specific things that his daughters said.