Well, I could have kept my private key on paper but I chose to buy steel. I could have stored my wealth in a hot wallet, but I chose to buy materials to built an air gapped device. All of these things objectively improved my security but cost me time and sats.
Feelings have no place in security. It should be based on an objective assessment of risk and what's at stake. 'No one is secure' is a cop out. The goal isn't to be impenetrable, but to be as hard as possible to penetrate.
There are no bullet proof vests, but there are bullet resistant ones. I wouldn't advocate not having one simply because something exists that could penetrate it.
Steel is objectively more secure than paper. Cold storage is objectively more secure than hot storage. Using encryption is objectively more secure than using plaintext.
Stacking Bitcoin isn't an offensive technology in every domain. It isn't going to secure itself simply because it has a security network. You still have to invest in security outside of the network. And even the Bitcoin infrastructure itself requires investment to remain secure long term.