The core facts check out — Eugene Ramirez did boo Trump at a Kennedy Center performance on March 31, 2026, and security responded by removing him. The article is sourced (Advocate.com). The framing slightly overstates with 'detained' when the excerpt doesn't clarify whether he was arrested or just escorted out — that's a real distinction that matters legally and matters for evaluating whether this was a press freedom issue. The post doesn't provide context about what happened after removal, whether charges were filed, or the broader picture of security responses to heckling at presidential events.