Toyota has designed and built that vehicle for that SEA market. Sure could it sell in the US? To some who want that, but the US is over-served for pickup trucks (granted not at that Hilux Champ price point.)

Toyota has spent a lot of money to build the Tacoma and Tundra in the US because Americans want vehicles built in America (plus the chicken tax.) There's little reason to import the Hilux Champ, especially now in light of the additional US tariffs not to mention that it would not pass all of the required regulations that the US has.