Nobody gives a fuck about the americans using it or not using it.
The issue is more serious: if the americans use it, "it" tends to get constant attention and a long, assured development over the years that keeps it up to date.
If you settle for a "frankenstein" C-130 solution you are alone every step of the way onwards. That's where the Nimrod nightmare comes in. Or the Challenger 2 rifled, 2-piece ammo nightmare. Choose the one you like the most.
If you settle for C-295, you are pinning hopes on sharing development and upgrade costs with the likes of Mexico and Chile. Good luck!
If you settle for an half-arsed solution, the option of using the same aircraft for also replacing Sentinel goes out of the window. Then you have to keep two separate fleets going. Is there the money and manpower for it? I fear another fratricide struggle a few years down the line, in which one of the two dies because there are resources for only one. (Sea Harrier and Harrier GR7, one dies one becomes GR9; Harrier and Tornado, one dies one stays...).
And any MPA that is procured should have actually good ASW kit installed, which in this day and age means multi-static active coherent sonobuoys.
If any aircraft that is not P-8 has good answers to these problems, it is welcome.
But for what i can see, no other candidate checks all the boxes.
You might also know me as Liger30, from that great forum than MP.net was.
Arma Pacis Fulcra.
Si Vis Pacem, Para Bellum