If you really want to understand blockchain technology and invest in new projects, you definitely need to read the data security laws. I've seen so many Dapps that offer opportunities to free people, free data or create open markets. Cool, but the white paper doesn't say how to store these extremely private, sensitive data controlled by a highly developed set of international data security laws, does it? Data privacy on the blockchain is integrated with the underlying chain, or built in the top layer, which will create a huge market that is critical to expanding consumer-grade applications.
Well as for the topic: blockchain is not private, you are somewhat not right and I don't get it how it connects to what you are saying in this post.
Blockchain exists in 3 states:
Private
Public and
Consortium
All of these have different levels of privacy, security, and decentralization.
Privacy really matters and consumer grade applications surely need higher privacy which blockchain does provide. If blockchain would lack privacy, it would not have been acceptable. For greater anonymity and security there are many other DAPPs.