Always good to ask about the semantics of things.
I suppose pluralism, first and foremost, ought to mean non-discrimination. In that sense, it’s a equality of opportunity and negative liberty, first and foremost.
As for a more positive vision, i.e. (relative) equality of outcome and positive liberty, I’m more skeptical. Each case should be taken on its own merits; but the negative or defensive side is prior in importance to the positive side, as there is a limited degree to which artificial ‘social engineering’ can be legitimate.