I think your last paragraph misses the entire point of my post... No matter how many people hate General Motors, the spokesmodel of the latest TV commercial is not likely getting death threats.
Its always the people who insist on making themselves the brands, that self-promote themselves as a brand, that attract the death threats and nut cases, just like any other "brand".
If you can separate the brand and the person in a way even the trolls can understand, let them hate the anonymous brand all they want, what does it matter?
Maybe a sports analogy helps? Everyone in the state of Wisconsin viciously hates the brand of the Chicago Bears and the journalists encourage it as much as possible. But no one sends death threats to Mr. XYZ who is a ticket collector at gate 3. One is a brand and hating brands is seen as a universal good (other than on social media, whoops). The other is just some dude making his way thru life, no problem.
(edited to give you another example. Look how /b/ on 4chan behaves toward women on /b/. Not women in abstract or women in journalism, I'm talking about humans with two x chromosomes talking on /b/ itself which is about 99% male trolls (and lots of lurkers). Frankly, /b/ behaves pretty nicely and civil almost gentlemanly toward women actually on /b/ AS LONG AS she doesn't go all self promotional "gimmie attention look here I am a girlie on /b/ everyone look at me because you're mostly guys and I are a girl so you must worship me its all about me me me me" and then they turn on her like starving wolves beginning with "show us (you can guess) or GTFO" and it generally kinda devolves from there, in fact it gets quite a bit worse, and very quickly. They now hate her because she is now a brand and not a person. Find me a trollier place on the internet than /b/ (good luck) and I bet they behave the same way, people treat people like people, and some people treat some brands like dirt, worse than dirt, worse than you can imagine dirt being treated, and if the brand happens to be an intensely self promotional person instead of an abstract entity or corporation or idea or whatever then things are really going to suck for that brand-which-happens-to-be-a-real-woman. Or TLDR if you want to be treated like a person on 4chan on /b/, its really easy no matter who or what you are, just behave like a person, not a brand or a PR rep or marketdroid. The internet is very nice to people, and occasionally utterly shockingly brutal to brands. Go choose your destiny...)