was the holodomor widely-known in the 1930s, though? I didn't think so, I didn't think much information emerged out of the USSR about the negative elements of Soviet societyMy point here is Sartre was appalled by the 1956 invasion of Hungary but his admiration of the USSR dates from his youth (he was born in 1905). The Holodomor occurred in the early 1930s and the purges dominated the late 1930s. I find it difficult to believe Sartre was ignorant of these events. Yet they didn't seem to discourage his admiration of the Stalinist state whereas the invasion of Hungary did. As bad as that was, it doesn't compare with the humanitarian disaster of the Holodomor or the impact of the purges on the political and security structure of the the USSR.
Holodomor - Wikipedia
w/r/t the late-1930 purges, i thought the Stalinist line was that they were purging Trotskyist/other counter-revolutionaries? perhaps if one really wanted to believe, they might believe that?