Not just the committee but that ucc is broadly a vehicle OUN B banderites. Yaroslav stekso who was prominent Oun B member and huge nazi war criminal. He had been the head Anti Bolshevik bloc of nations (ABN) which had good ties to World anti communist league (WACL).
This ABN through WACL helped Pinochet's whole anti communist pogroms in chile. Stetsko had connections people in CIA like John singlaub. He got so much cachet in Washington, he had met HW bush at one of the ABN anniversary event.
Stetsko was part of organization of Ukrainian nationalists apart from ABN. This evolved and overall in the 80s took over Ukrainian Congress committee of america which is founding member of World congress of free Ukrainians or now known as UKRAINIAN WORLD CONGRESS.
They have corps in Canada, USA and Australia which manage to have youth leagues. These organizations managed to push for this holodomor narrative and got mileage out of it.