Sure. I very much shared/share your perspective, but then I was thinking from the perspective of a low-income, unbanked person in South Asia/Africa/Latin America, who might find a way to earn in BTC, but literally has to spend money on food/rent/whatever in the next few days with a vendor that only accepts USDT.

You don't get it. You are helping stabilise the USD regime. Which will take the Bitcoin community that much more effort yo overcome. In the Monero community you have people that trade things based on long-term averages. It takes out short term volatoity for normal people. Will enable arbitrage for traders. Explain those people how to use an average price. What should have happened is a rapid adoption of Bitcoin as MoE and then longterm stability. Now we are in noman's land and stabelcoij adoption will lock us in for more years to come.