That's never going to happen. And there's no format change that you can make to international basketball that could conceivably make that happen. Like, seriously, what it would take to make that happen is a bunch of contraceptives, and a time machine: you would literally have to go back in time, to before the NBA became the best basketball league in the world, and stop the best American players from being born, so that it never becomes the best basketball league in the world. Either that, or you would have to go back far enough to change the entire socioeconomic and political climate of the United States, to the point that African-Americans no longer looked to athletics as their best chance to escape poverty.
As long as the NBA is the best basketball league in the world, there are virtually no American-born basketball players that are going to value playing anywhere that's not the NBA, as much as they value playing in the NBA. You also have to consider that, because of factors that have little to do with sports, the best basketball players in this country tend to have a very different view of nationalism/national "pride" than basketball players from other countries of origin.
I don't believe that. I'm not really sure why you believe it. But, I guess it depends on what you mean by "all hands"? Like, the best American-born player under 30, right now, is Anthony Davis. I don't expect Anthony Davis to be in Paris, whether USAB medals in Tokyo, or not. And there's little-to-no chance that any elite player older than him is going to Paris in 2024, whether USAB medals in Tokyo, or not. What needs to be acknowledged is that, in 2008, when it was "all hands on deck," as you put it, all of the best American-born players were still under thirty years old: even Kobe didn't turn 30, until the week after the Olympics. In 2024, the best American-born players (in some order) will probably still be Anthony Davis, James Harden, LeBron James, Stephen Curry, Damian Lillard, Kawhi Leonard and Kevin Durant, the youngest of which will be the 31 year-old Davis... And they ain't goin'. In 2024, the best American-born players under 30 will probably be some combination of Jayson Tatum, Trae Young, Devin Booker, Zion Williamson, Brandon Ingram, Ja Morant, Donovan Mitchell and Bam Adebayo. I mean, some of those guys might level up between now and then but, if you had to call it right now, is that your idea of "All Hands On Deck"?
And I'm still not seeing how you get "entitled" out of, "We've got to send our best, in order to win." That's, like, the opposite of entitlement.
I'm not connecting the dots, here: I don't see how any of your proposed solutions would put any more "skin in the game"? Short of making committing to USAB a barrier for entry into the NBA, I can't see any way to make that happen. I agree that having continuity amongst the coaching staff would help, too, but the problem with that is, most of the coaches view the NBA/FIBA dichotomy the same way that the players do. I really don't believe that a U23 team is a solution, either: the really good players might play a couple of years, but that's still not going to solve the continuity problems. You know what could, though? Make a full time Senior NT out of ex-NBA guys: guys who didn't have super-long careers, but made enough money that they could devote themselves to playing for USAB, full time. Let those guys play together, under FIBA rules, 25-30 games a year, for three years in a row, and then let's see how many countries in the world can beat them?