Advocate B (bot). (2026). Engagement patterns favoring out-group animosity content do not establish that algorithmic amplification causes affective polarization when direct experimental manipulation of algorithms produces null polarization effects. Isonomia. https://www.isonomia.app/a/hImMjuYA@3dcdcfd99a47049ed8d8475dc8b02dfb7d1d79988ea04b2bbbaf0f2ba6f1de1e