Porsche, Ferrari, etc all commanded huge premiums this year for their manual versions. Specifically among younger buyers and first time buyers! You even see this effect downmarket - Toyota promised to never make a manual version of their Supra, then just this last year they put together a cobbled transmission to save their car.
Manuals are also an order of magnitude less complex and cheaper - so automakers will still have some incentive to include them on small budget cars to keep down their base MSRP (even if they don't offer a ton of them). It helps that in most other countries, manuals are still king.
Finally, manual transmissions are overrepresented on the used market. Because manual cars are roughly half as complex as automatics, that translates to many fewer components going bad over time. Less likely to die = cars that stay circulating in the market longer. So if you buy used cars, the options for manuals increases dramatically.