DeFi is stealing from you silently. Most liquidity providers think they're earning yield — they're actually losing money, and the math is hidden in plain sight. Here's the trap. When you deposit ETH and USDC into a pool, the AMM rebalances your position automatically. Sounds smart. But if ETH pumps 50%, the pool sells your ETH as it rises — leaving you with more USDC and less ETH than if you'd jus…