Putting the Dollar Flight in Context and How to Protect from Further Erosion

Reddit has an insatiable belief that the end of America is here. The dollar is down 9% in the last 3 months. While a big move, it's important to note at $100, the dollar index is just off all time highs of $120 and well above all time lows set in the bottom of 09 of 73.

Data: https://www.marketwatch.com/investing/index/dxy

Should the dollar fall further what are some low risk methods to guard against it? (Not stocks, bitcoin or gold as those are higher risk)