The Short Version
The available evidence directly contradicts this claim. Eurovision reached 162 million viewers in 2023 and 166 million in 2025 — the highest viewing share since 2004 — alongside record-breaking online engagement. Arguments for decline rely on a single-year dip in one country (Spain, which rebounded in 2024), broadcaster withdrawals driven by institutional disputes rather than audience loss, and low-reliability commentary. Aggregate cross-market data consistently shows Eurovision's popularity at multi-decade highs, not in decline.