Yes! That would certainly be worth a try. I wasn't even thinking that far ahead!
Sure, use the seals released inland to lure the polar bears to migrate toward the coasts. Greenland is an island, after all, and with lots of bays and inlets all around it.
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Meanwhile nurture coastal populations of seals for a permanent food source. They cannot eat all the seals, so the population would grow, not shrink.
A win-win.
I don't think Denmark cares about the Greenlandic bears. Nor about the Greenlandic people, except as a point of pride to be the last European colonialists in North America.