George Bernard Shaw: “And yet, revolution has never lightened the burden of tyranny. It has only shifted it to the other shoulder.”
I cannot agree with your assertion — though I’ve certainly heard it many times before — that our competitive nature is to blame for social justice. Not every individual feels compelled to compete, and many who enjoy competing have no desire for that competition to be over the necessities of life. The happiest societies on our planet are the ones that have agreed we all should be provided the necessities. The resources are already here to feed, house, educate, and provide medical care for every human being.
But are you seriously suggesting we should not address the injustice of a system (in the US) that gives so many advantages to White males at the expense of everybody else?