FYI cable networks (upstream) are essentially token ring.

In fact, broadcast ethernet is essentially token ring, except instead of a token it just grabs the wire. Only one machine can grab the wire at a time. Switches hide that from most people.

No, DOCSIS is nothing like token ring. It doesn't use tokens, it uses channels for up/down and TDMA/CDMA.

No, 'broadcast ethernet' is not token ring. There is no token. It's not a ring. Switches do hide the details, but it's hiding collision domains, not token passing.