layerzero collects fees on every usdt0 cross-chain transaction. bybit's 15m users now have zero-fee usdt0 access on mantle. tether's $181b fragmented across 50 chains needs unification. if 10% of usdt volume migrates to usdt0, zro processes $50b monthly in transaction fees. december 19 unlock is $32m against infrastructure controlling tether's entire cross-chain strategy.