Yeah, class reductionism will only ever lead to more oppression of those already marginalised.
If your leftism doesn't include intersectionality, you're doing it wrong.
(to be clear - "culture wars" are a right winged distraction, but they are based on very real and massively impactful systems of oppression that they are trying to maintain, ignoring this only enables them, and guarantees those systems will remain even if we get economical change)