Nothing, but every counter-argument they are going for will make them sound stupid if they say it out loud, so they can't write a response:

• Your emotional state is entirely determined by outside circumstances!
• Your current material conditions are the sole factor determining happiness!
• Western philosophy is too old to be relevant!
• Stoicism is the foundational bedrock of Fascism!
• Rightists might support this!
• Men, am I right?
• Shut up whitey!