Equality of outcome or opportunity? That matters. I'd support one but not the other. I lived under Communism until 1989 and I know what equal outcome looks like after decades of having its run. There is no incentive to excel and all the incentives to conform because equality comes before merit. After some time the whole society slides into poverty.
What I don't like is to put ideology over humans, meaning to prefer abstractions and reifications over concrete realities and ignore those realities. Fighting for justice on a societal level can often be blind to personal details. It's usually us vs them and personal details don't matter, in that regard it's similar to war, dehumanising their opponents in order to make them legitimate targets.