How are Microsoft and CNN part of the state? Aren’t they just providing a service in exchange for money, in the same way a farmer, an actor or a mechanic does?
Your landlord example is interesting, and does illustrate how a state may be necessary to enforce private ownership, which is something I hadn’t considered about capitalism before. I suppose the landlord could pay private militia to enforce their ownership claims over the land, but at that point the landlord is basically a warlord and realistically wouldn’t need to pay for the land in the first place. The libertarian idea that everyone would voluntarily respect private property rights now seems as absurd as the communist idea that everyone would voluntarily share all property.
I don’t quite see how hoarding property could be considered violent, assuming it was acquired peacefully. Using what you’ve acquired to gain materially is not necessarily exploitative if those gains come from voluntary exchange of goods and labour. If someone wants to clean my windows in exchange for some money, I don’t see how it can be violent to enable that transaction. No one’s being forced to do anything in that scenario.