Oh, yeah, this is all incredibly valid. NTR, at least of that sort (which I feel like is most of it) pretty much always requires some level of suspension of disbelief to be able to enjoy, and where that line will be drawn is going to vary a lot from person to person. Personally, I'm generally able to handwave the sort of 'magic cock' scenario you outline there, though obviously I very much prefer any (relatively rare) scenarios where things are actually better written and drawn out. It's the process itself that tends to be the hottest part!
I'm probably going to drop this exchange after this, just because I feel like I'll really just be repeating myself from here. Speaking for myself, I completely agree with what you're saying here, one hundred percent. The feeling of helplessness, of inevitability, is an incredible part of the NTR experience. Reaching a point where a (former) loved one actively turns against you in service of letting the 'villain' drag them even deeper is an amazing rush, assuming it comes after appropriate buildup.
The only, or at least main, disconnect I see is that you seem to think these feelings / situations are tied directly to how extreme the kinks / degradation get, and I just don't agree with that. Yes, there needs to be some degree of contrast, but there's pretty much never a need to go particularly extreme to achieve that, and going more extreme past that point doesn't really have any direct correlation with stronger feelings along the lines of what you describe. It *can* achieve that, but it's not guaranteed, and it's also far from the only way to do so.
