One thing you can say about Corbyn: his views have never been a secret. Or changed much. The only thing, ironically, which he ever changed his mind in seemed to be the EU, but I don’t think it was convincing. And his latest speech on the economy is obviously courting labour’s Brexit supporting voters.
So I’m slightly puzzled that you find him a disappointment. Your views tho I must say have always struck me as somewhat to the right, do also surprised you ever had much time for him in the first place