Americans are American sport centric. Some people don't even realize how popular soccer is on a global scale. LIV is geared as an international/global league. It's a niche market and it has funding.
I understand the funding, when you have 3 major professional tours in the USA alone, combined with the DP World Tour and other tours is Asia and other places the LIV tour will survive on a relatively few name golfers some of whom should be on the Senior Tour.
One thing I did not realize until recently, the huge money you hear about on LIV that is guaranteed is a little misleading, the bigger stars on the LIV tour get paid no matter what, any money they supposedly win comes out of the guaranteed money we hear about, any money they win in a tournament is not on top of the guaranteed money you hear about.