I want to immigrate to French Polynesia.

You can stay freely for three months with an EU passport (much longer than other countries), so I think it should be much easier to get French citizenship first, or immigrate directly to the past. After all, that place began to be autonomous after 1982.

You'd better ask this question to the French Consulate in Hong Kong. If you want to travel there, you need the signature of the French Consulate in Hong Kong!