Are people using capital to acquire more capital to then undertake more capital-intensive endeavors? Yes? Then it's still capitalism.
At this point I think Varoufakis only continues to rant his drivel in order to feel better about being a rich capitalist himself.
He's had a very visible career so it's actually pretty clear what his views are. He is not at all a socialist, he is a SocDem. He likes neoliberalism with some safety nets.