This is not about "class reductionism" which was not a concept back then. It was about economism and strict economic determinism (it wasn't called economism back then of course, I believe it was Lenin who first started calling it that). Class reductionism is a much, much more recent concept. Don't project modern concerns of the left onto people who died more than a century ago. Especially the bit that implies Engels was talking about intersectionality, it's completely anachronistic. Intersectionality is about people's social and political identities and how they lead to oppression based on the identities. But that's not what Engels is talking about, Engels is talking about intersecting political, economical, cultural etc forces that guide history. It's a much different concept. Economism and class reductionism are somewhat related but they're not the same thing and one doesn't imply the other.
This is not about "class reductionism" which was not a concept back then. It was about economism and strict economic determinism (it wasn't called economism back then of course, I believe it was Lenin who first started calling it that). Class reductionism is a much, much more recent concept. Don't project modern concerns of the left onto people who died more than a century ago. Especially the bit that implies Engels was talking about intersectionality, it's completely anachronistic. Intersectionality is about people's social and political identities and how they lead to oppression based on the identities. But that's not what Engels is talking about, Engels is talking about intersecting political, economical, cultural etc forces that guide history. It's a much different concept. Economism and class reductionism are somewhat related but they're not the same thing and one doesn't imply the other.