I would never buy and hold USDT.The tether bubble scam might burst at any time.
"trade only what is stable"What do you mean?Most traders buy/sell cryptocurrencies mostly because their prices are not stable.It they were stable the market woul be dead.
This.
I can't believe after all this time people are still buying or holding tether.
If you don't want to hold BTC, then find an exchange that allows you to trade it for dollars or euros and hold those currencies while you wait for your opportunity to get back into btc.