You know, I actually respect this student. They're not screaming about feelings; they're writing a rebuttal using sources and taking care not to seem hostile. I absolutely loved students like this when I was teaching, even if they were wrong. They're learning how to defend their ideas academically. I always wanted my students to know it was okay to challenge their teachers as long as they were polite. That's how you actually learn something, not just by deferring to your teachers because they must know best.