It depends on trading strategy and how market is moving. If there is a loss on bitcoin then traders will not hold it either and convert it to stable coin. Traders used to convert their alts to btc for stability way before stable coins came along but since some of them have shown to be stable traders are moving towards them when there is instability in the market. Then, there is another market trend when alts become stable and btc starts moving up. that's when traders move their holdings to btc instead of stable. There is no right way to escape loss and as a traders that's a risk you take but with proper market research and training you can make decrease your risk.