Well Zhou meant that as an insult Khrushchev because Khrushchev was born a Russian peasant while Zhou was born into the Mandarin Chinese class which had considerably more social privilege than other Chinese ethnicities.

But I agree nonetheless! One cannot engage in material analysis and revolutionary politics without first coming to grips with material reality. What’s very important is that we remember the circumstances of our birth do not diminish our value as human beings (that notion is fundamentally idealistic and liberal). But it does change what our role is in revolutionary organization.