I’m not sure what you’re disagreeing with in particular but I'll try my best to answer what I think might be your point...
Using auto-tune for the reasons I described is an individual's decision and entirely subjective to their preferences. You have a sense of pride in your authentic approach (I’ll never knock that) but others don’t mind cheating a little because it is a means to an end. Some people feel bad about cheating and others don’t.
Perhaps you are coming from the perspective that good singers would always pride themselves on having an authentic approach? I would disagree there… At some stage or another, many common place approaches have been condemned for straying from tradition only to be absorbed into the arsenal of valid approaches… Compression takes the skill away from controlling vocal dynamics but most singers benefit a little bit from it. Double tracking is also commonplace but it artificially strengthens vocals that would otherwise get lost in the mix and sound weedy. With the latter, it is possible to view it as an aesthetic choice but it is still, for all practical purposes, a vocal strengthening technique. Many vocal effects that are now accepted as creative and stylistic have been used to cover flaws in vocals and people have been criticised for it.
There are, of course, very good reasons for taking the masterful approach to art and it is admirable but if the distinction is not admired by the buying public, what can you do? If someone compromises their vocal ability and the fans accept the fix then it is the end result that those people care about and not the dedication towards conserving the voice.