We’re getting there with Lightning network. Paysend messages can include encrypted payloads. Sphinx used this for its messaging protocol.
Discussion
Thats a bit of an inefficient approach, requires the endpoints to use lightning, and bolt on encryption after the fact the same as secure tunnels are done for http. To that end, Tor proxies are an improvement.
ToR is best-effort by volunteers. Lightning nodes have a path to profitability. I predict that this incentive-compatibility is more likely to yield higher quality solutions… eventually.
That's pretty cool!