Tom Waits and Coldplay (or specifically, their mixing engineers) have gone on the record saying they use Melodyne in their marketing brochures.
Again, it is literally impossible for a human to know if pitch correction was used on a song. But if it's a song that was released after 2010 and mixed by an engineer, they used pitch correction, guaranteed.
[0] https://musicmarketing.ca/DNET/rack/brochure_melodyne_3.pdf
Not exactly. A guy who worked with them said it. They also have worked with dozens of others which would be where they used it. Also Waits recorded for 25+ years before Autotune (much less Melodyne) was even a thing.
And instead recorded the same piece several dozen times and for the final recording spliced together what sounded best.
This is like complaining that you don't want authors using spell check, they should have to retype the entire paragraph every time they make a mistake!
The end result is the same, the only difference is the path to get there.
There may be some fair complaints about usage at live shows, but for recordings, the end result is going to be the same if melodyne is used or if the artist is recorded again and again until everything is "perfect".
Not sure what you have in mind, but people don't need to listen to the top-20 or BS R&B.
Even if you want to listen to electronic music, there's a big universe of artists who have nothing to do with the "autotune" sound and modern commercial productions.