No, according to the Chinese Citizens League, ‘chinaman’ is a slur.
Dutch are okay with Dutchman though.
Each group apparently gets to figure out what offends them for PC rules. Unless it’s white people, and nobody gives a flip about those crackers.
i suppose you could just say “Hey china!”
and if a group, china 1, china 2,...
Maybe members of the Chinese Citizens League are ashamed to be Chinese but Dutchmen, Englishmen, Frenchmen, etc are proud of their heritage.