yeh but it's not the saas/big 4 that has developer login locally as admin that gets owned and then is not segmented sufficiently to stop the spread, it's the scrappy startup.
And I say this while working at a scrappy startup where there is no segmentation, every browses in a browser with sudo etc. see piriform and others.
Your hate is not wrong of cloud but onprem is not necessarily more secure. Not at all. (IMO layers of abstraction and cost once you actually scale are the real negatives)