British airways have been putting 200 hour cadets straight onto their jet fleets for decades. They are mostly, almost without exception, by far the best captains with which to fly. Great knowledge, open atmosphere and shallow flight deck gradient. Pleasure to fly with as an FO.
perhaps rethink your strategy for not wanting Chinese or Hong Kong nationals on your flight deck, because the hours thing isn't going to cut it. Why not just be unfront as its pretty obvious there's a huge race problem amongst some senior Cathay pilots.