You prefer to hold a highly inflationary currency like the Ustd which is highly centralized and controlled by the bank, vs Bitcoin which is anti-inflationary and also doubles as an asset. There is no thought that during a bear market stable coins like those users may have a preferable choice to hold but it will still amount to a total waste of time in the long run because when the bull happens is only your bitcoin that will peak with the market and your USD will become weak.