Possibly because of the way he's found his career. Paxton is very popular in France and was very instrumental in introducing liberal historiography into French WW2 history. For him to throw a bone to Marxists would be undermining how he earned a name for himself in the first place.

[–] PolandIsAStateOfMind@lemmy.ml -1 points 1 year ago* (last edited 1 year ago)

Yeah i see that in polish social sciences too, especially by older authors, it's hard here to keep position in the academia without paying at least lip service to anticommunist witchhunt. Unfortunately even those people are already dead and the new ones are not even shy about being opportunists, most books publish nowadays are almost worthless since it's either anticommunist propaganda, pophistory or bland compilations from older ones.