The comment is talking about how the gp has their priorities wrong. Separation policy, etc are actual problems, and more important than “my neighbors don’t love this country like I do: they don’t admit to being inspired by its founding myths, they don’t like to sing the anthem or say the pledge of allegiance”. Come on, in a country with a reputation for rough, independent individuals, that’s your top grievance? So the comment has a clear point, and it relates to what the gp stated. That’s a dialogue. You’re the one refusing to further engage with the counterpoint, which is how the dialogue was disrupted.