Corbyn has specifically indicated that he values the kind of busines that actually involves real investment. That's not the same as buying up public utilities sold off the back of a lorry by a dodgy government selling it at mates' rates.

The word "capitalism" covers a wide range of ways of organising things. Some are quite compatible with a decent society. Some are toxic.

It's worth noting that Corbyn's suggestions about how the economy could be better run have been quite widely backed by a fair number of well regarded economists, and in fact are a lot more in line with current IMF thinking than George Osborne's. (Though IMF approval isn't necessarily an encomium, it does puncture the story being put around that Corbyn's proposals are so far out from the consensus that they can be dismissed as ridiculous without even being examined.)