Don't know why you think that?This question is probably sacrilege here
Can't say I've heard anyone complain about a US AK, so I guess those marked as that are ok.
But actually most US made AKs are just assemble here and use quite a few parts from over there. Like trunnions, bolt carriers & bolts, you know the stuff that's cheap to make over there but would cost more here because of labor prices. Then they use as many US made parts as possible.
Actually any kit build can be classed as "made in the USA" since it turned back into a firearm here.