The market disagrees. Tether's market cap has plateaued above $4 billion and shows no signs of dropping:
https://coinmarketcap.com/currencies/tether/If you are too worried about your transactions and assets being disrupted, you should also use a few other stablecoins. In the crypto market, there are many types of stablecoins, such as PAX, USDC, TUSD, ...
You don't need to use USDT and become too nervous. We have many options bro, relax.
The liquidity is lacking on all non-USDT stablecoins though. USDC is
okay on Binance, but even as a smaller trader I've struggled at times to get in/out of positions quickly. It's even worse everywhere else.
I'm a huge fan of DAI because it's a stablecoin that is decentralized and not backed by USD deposits.
DAI is super cool. I love the idea of hedging USD value with a decentralized token. I just wish the markets were bigger. Coinbase and Kraken launched markets but they are very disappointing.
Yeah one of the biggest issues w/all the different options for stablecoins is that its just spreading liquidity thin across a bunch of base pairs. When it was just USDT that was great since it had lots of volume. Unless exchanges decide to really care that DAI is the most ideal approach to a stablecoin, I don't think it will be a viable trading pair until the overall market has a LOT more liquidity and volume.