AI-generated advertising is creating a growing trust problem: consumers may respond positively to AI content when they do not know it is AI-generated, but engagement and trust can decline once that origin is revealed. This article argues that native advertisers should not abandon AI, but should move it upstream into research, competitive intelligence, positioning, and creative planning while keeping human judgment responsible for final output. The stronger long-term advantage is trust infrastructure—real proof, credible expertise, authentic customer evidence, and governance that can withstand increasing platform and regulatory scrutiny.