Event scores 19.04 on A-scale (below 25 threshold) and 32.48 on B-scale (above 25). Delta of -13.44 clearly exceeds -10 threshold for List B classification. Constitutional damage is real but limited: civil_rights (4) for historical erasure and memory suppression, separation (3) for executive overreach into cultural institutions, capture (3) for ideological control of federal museums, rule_of_law (2) for norm violation. Norm_erosion_only mechanism reduces score by 15%. Reversibility high (0.9) as exhibits can be restored. Precedent modifier (1.1) for establishing pattern of historical revisionism. B-score elevated by perfect culture war targeting: slavery exhibits are maximally divisive, Philadelphia location adds historical irony, predictable partisan split. High intentionality (11/15) for deliberate symbolic action with clear narrative purpose. Layer 2 strong on mismatch (substantive action vs symbolic target) and pattern_match (fits broader anti-woke narrative). This is strategic distraction through culture war provocation rather than substantive constitutional threat.