He wrote it from his perspective.
come on...
come on...
The shift to treating he/him/his as exclusively male seems to be a fairly recent phenomenon (last few decades) as American social progressives sought to change language to be explicitly-inclusive instead of implicitly-inclusive and to avoid confusion due to the context-dependent dual meaning of such words.
1970s - "he" means everyone 1990s - "he/she" means everyone 2020s - "they" means everyone
Kind of a wild take to ignore centuries of implicit and explicit exclusion of women from having civil rights.
as is well studies, we know very concretely how language and word usage influences thought (because it is thought, expressed)