Here are a few options for a formal title, depending on your specific focus:
Option 1 (Direct and academic):
“The Psychology of Viral Disinformation: Analyzing the Rhetorical Construction of Hate”
Option 2 (More precise):
“Decoding the Rhetorical Architecture of Hate: A Psychological Analysis of Viral Disinformation”
Option 3 (Refined and concise):
“Psychological Mechanisms of Viral Disinformation: Deconstructing the Rhetoric of Hate”
Recommendation:
Option 1 is the most professional and standard for an academic paper or formal report.