I don't think that proves anything at all. If you said to a free software advocate: 'Freedom is pointless because most of us don't exercise most of our freedom

I don't think that proves anything at all. If you said to a free software advocate: 'Freedom is pointless because most of us don't exercise most of our freedoms' that would clearly be a nonsense argument. Enumerating open source projects and counting their contributors is barely more coherent than that.