I'll go first to get us started….
New forms of entertainment have replaced opera (too many "easy" things to compete with)
Lack of music education at a young age
The gulf between opera and the music a younger generation listens to has become too wide
Opera houses are evolving (in the wrong way)
The bar for great singing is too low
What would I do differently?
Get back to the basics - the simple things that make opera great - instead of trying to upgrade the experience with technology, etc