If We Can Trustlessly Route bitcoins in The Lightning Network, Why Don't We Use The Same Concept for Internet Itself To Remove ISPs as Thirdparties?

They say the bitcoins in Lightning Network will get automatically "onion" routed to the end point user just like TCP/IP, and LN is like HTTP that was built on top of TCP/IP as second layer.

But wait! What's the role of centralized ISPs like Verizon, AT&T that we pay monthly fees to them using their services?

Can Anyone Explain This?