That would be a TON of writing, which nobody would read. Thanks for pointing that out, as with anything, these are my opinions and I hope you form your own as well. My opinions aren't perfect, and none of these companies are outright "good" or "bad".
Their immobilizer issues (also see the fire issues with the Telluride and Palisade), are definitely a pretty dark mark on them recently, and I can't account for every individual's. It sounds like your views towards them are entirely justified, my main reasons (I have this above in more detail) for supporting them are because I've always gotten utterly exceptional customer support from them (again things vary), but primarily because they've been a leader in electrication, they continue to make smaller vehicles and not road hogging mega-SUVs only, and all around are making very good products right now despite some issues.
I think there's a definite media/perspective bias with vehicle manufacturers, for example Toyota is on my naughty list which would probably surprise alot of people, but they have had some of the largest (and indeed the very largest) vehicle recalls in automotive history in the last 10 years, some causing death and injury (see floormat recalls, Takata airbags, etc.) and yet they have so much hush money and such a "good reliable brand" reputation that nobody seems to care.
Hyundai (like alot of Korean companies, coughsamsungcough) has pretty heavy ties and influence over the government which is also kinda sketch, but perhaps you're right and maybe they better deserve to be in just a neutral category for myself.
I won't tell you to get the fuck outta here for your differing views on Hyundai, but as I noted, none of these companies are perfect and their recalls and issues with this pale in comparison to those recently with Toyota for example, as much as I know this has personally harmed you directly.