A USB-C connector has 24 pins. 22 of those need connecting through to give all capabilities.
Note that according to standards, the maximum length of a USB3 cable is three metres.
Somewhat longer connections are possible, but by using ACTIVE cables that contain signal amplifiers to regenerate the data.
Active cables can be chained together, to multiply the total length - but the actual copper sections between electronics are not all that long.
Ethernet can be 100m from device to device, but it uses very different signal types and frequencies.
Using an Ethernet webcam / CCTV camera that has PoE capability would be a lot simpler!