LOL, Becky, don't pretend you've read Marx. Julian is 100% that Marxism gives 0 shits about identities. Whatever you think of Marx he would never think identify politics are reasonable or wanted for class struggle. Black and white gas station worker have more in common than you'd like to think.
You're as socialist as you are a Jew, half-assing it, not understanding it, not reading source materials.
Daniel, you almost got it. You can't self-identify as rich and go to bank to grab your money. But you can say you're non-binary and this is somehow reality defining. The key point of Marx writing is "materialism" not "how moral does it feel".