ok, I'll try again. how is this notion that conservatives are not free to express their opinions not a standard political talking point? there's an entire genre of such articles in the mainstream media. it's a popular argument with white supremacists who are attempting to normalize fascism.
you're permitting a standard political talking point to be an entire topic of discussion, and then screening out some individual replies because they invoke additional standard political talking points.
you're allowing some standard political talking points and disallowing others. if you're doing that, it would be convenient for your users if you were to specify which standard political talking points are valid topics of discussion, and which other standard political talking points will get your comments banned.