I liken it to Germany rebuilding trust after WWII.
I see this over and over again, wish there was some way to bet on it. But it would be difficult in 10 years to say cause and effect.
People have short term memories unless harmed very specifically / directly. Not indirectly affected.
The rest of the world saw what Americans did to Iraq, and it has been downhill since then. You don't get to be the #1 funder of terror around the world and keep demanding glory and respect from the lackey nations you push around with those terror networks...
One can play with bond markets and various ETFs or other derivatives, depending on what you envision. But even if your bet is qualitatively correct (that trust in the US ebbs for decades), it's hard to get the timing right to make an actual bet.