I’m not sure GC is an option for a few reasons. In order for it to be approved you would need to move to the USA and live here. Proof of domicile is required .
And for your wife’s GC not to be cancelled, she would need to actually live in the USA.
none of which you said you wanted.
you may be correct, it’s not only not worth while but it is not plausible. Maybe, down the road, if you decide to move to the USA…
good luck with your journey