renaissance poisson

No, that's not the point. They want to discuss something that does not get discussed. They want to talk about their views because they are not allowed to talk about their views because the subject keeps changing.

When Person A says "I have experienced this sort of behavior towards myself and it makes me feel like a second-class citizen," and Person B says "You know, the Irish were considered second-class citizens for a good part of American history," that is a change of subject, not an opposing view, because A wants to make B understand A's current experience, not to discuss it in a historical context.

*That* is the sort of thing that's frustrating them.