While I do not object to the use of astronaut as inclusive of cosmonauts, taikonauts (which Wikipedia indicates is a media term with limited use), astronauts "proper", and any other 'naut, even within an English-language site I do not know if such is insensitive to the activity of "non-Western" (Russia being kind of in between) 'nauts.
(The use of the Chinese for "spaceman" in Taiwan and Hong Kong seems good to me--some crew members are not really "sailors"--; but it is almost certainly too late for such to be adopted as standard English use, though such might have some benefit of reducing the visibility of nationality.)
The fact that Wikipedia chose "astronaut" for the canonical article title might indicate that such is not inappropriate, but Space Exploration SE might come to a different conclusion.