AbstractViral influence of consumer reviews can change the strategic intent of co‐branding relationships between minority entrepreneurial startups and established corporations. When social justice positioning is involved, the intent is often to support minority businesses. We acknowledge this strategy as social justice branding. However, such alliances can trigger vitriolic responses. This backlash is an expression of free speech, and social media provides an obscure facilitative environment. The challenges of social justice branding are complex. We examine consumer online reviews of The Honey Pot and Target Corporation partnership, to understand the implications of social justice branding in practice. Using Leximancer analysis, we find that social justice branding elicits multiple emotions that empower action. Some consumers accepted the collaboration while others resisted. Analyzing the basis of the resistance revealed some consumers expressed racist and shameful behaviors displaying disagreement. Backlash reflected willful ignorance releasing pent up prejudices and disseminating viral‐like negative information as weapons of retaliation against brands and marginalized communities. We contribute a conceptual model integrating theoretical frames of social justice, social marketing, brand activism and free speech elucidating the impact of consumer response to social justice branding. The findings and model add a lens to further explore race in the marketplace.