The obvious answer is yes. millions do. The Fury/Wilder rematch was watched by over two million on ppv @ over £60 a pop in the USA alone. Not counting the millions around the world ( it was £25 in the UK) watching it.
Tyson Fury & Deontay Wilder were on a reputed £30 mill each. Big business indeed. Personally I have always liked my boxing, & to be honest, I don’t think the current heavyweight division would have lived with likes of Ali, Frazier & Foreman, in my opinion anyway