Thats not true anymore, the US$ has increased the money supply around 37% in december, since there is no one not using the Dollar, we can expect inflation in commodities, basic means of living, rents, gold, Bitcoin.After the last halving Bitcoin didn't have the same bullish trend it used to after the previous ones. Therefore, even if its price will rise, it will definitely not rise as much as it did during the previous occasions.
Today there are far better opportunities to earn in the crypto space without being exposed to the BTC price fluctuations. Like yield farming (more risky) or margin funding (less risky).
I totally agree with you at this point. Sadly you need to find alternatives to cash if you want to store long term.