I think esports defeat the main purpose behind why video games exist which is for people to discover, experience, and play them in their own individual light. An escape into other worlds where you can become something other than yourself. Living vicariously through someone who plays a certain game seems silly to me now, as an adult. As a kid I participated in the Blockbuster World Championship and got my mom to drive 3 states away and take a few days off work just so I could, all the while trying(as best a 12 year old could) to describe how video games will be spectator sports in the future. I was right, but after shaping my life around them and eventually finding a career in the field, the idea of esports irks me for some reason. I should be proud, or happy that's the way things turned out and feel somehow validated but for a myriad of reasons I don't.
I occasionally watch let's plays and tournaments, but mostly as a study of tactics or to see if I want to purchase a specific title. Maybe it's that with all the training in the world I know I'll never be able to be an Olympic swimmer or get into the NBA, but know with lots of time anyone could get good enough to be in an esports tourney which invalidates my view on gaming as an ethereal out of body subjective experience.
Just my feelings, so don't take them to heart.