I agree that turkish and italian leagues are equal, i love to watch them both, turkish more obviously. But in the same time i have 0 desire to watch leagues with just them. I enjoining watching our teams competing in cev competitions, even in the games when we lose 3-0 against richer clubs, but this is sport.
This is a common idea and I agree it shouldn't be JUST them, however let's be real, so many teams getting crushed 3-0 with a probability below 1% to win against teams on another level does neither anything good for them or the sport. IMO there should be several levels within the sport, I would redefine the highest level and make CEV Cup a really good tournament among secondary clubs that could get them in the highest level as well, some teams are just below others and that's fine, it might not be a continuum but it's the same in most sports. You don't see Djokovic play against someone ranked 500.