Short answer
A market-neutral strategy is built so that broad crypto up or down moves are not supposed to be the main source of PnL. Instead, the goal is to isolate the return from a specific edge, such as a spread closing, a carry differential, or a cross-sectional ranking signal.
In practice that usually means pairing longs and shorts, capping concentration, and checking whether your exposure really is neutral to the market risk you think you removed.