Most modernist writers held left-leaning political sympathies

Evidence

One can also argue against this impression with empirical and biographical evidence about the writers’ sympathies. For one thing, Joyce and Kafka were socialists; even Proust was a Dreyfusard (although also a snob); Mayakovsky and the surrealists were communists; Thomas Mann was at some points at least a progressive and an antifascist; only the Anglo-Americans (along with Yeats) were true reactionaries of the blackest stamp. — Fredric Jameson, Postmodernism, or, The Cultural Logic…, 680

Categorization

• XREF: Concrete biographical data that supports the ‘politicality in form’ claim and counters the apolitical-modernism reading.