One of the polarizing aspects about Donald Trump is that he doesn’t codeswitch much, the way Obama spoke to black preachers in his black preacher accent while he spoke to whites in his flat Kansas accent (a state he barely has visited, but whom he claims to be from due to his mother having been born there and Kansas seeming particularly non-foreign) rather than in his prep school accent. Hillary has used many accents as well.
Trump talks like a guy from Queens, which he is. Many people, often ones not normally fond of New Yorkers, find Trump’s accent reassuringly authentic. Other people find it alarming. Does his failure to upgrade the class associations of his accent demonstrate that he is defective? Or does it imply that he rejects much of America’s class system? If he doesn’t have the decency to modulate his accent properly, what other social conventions might he not value? Clearly, many people with classier accents find Trump’s accent highly unsettling.
I’m pretty sure no one who heard Hillary trying to sound like Granny Clampett on Quaaludes found the experience at all rewarding. Obama had one distinct advantage over her: people tended to read him as some sort of kindred spirit, because they wanted one meeting his general description so badly. And therefore they found his speech patterns sort of neutral, because their speech patterns were sort of neutral.
As for Trump, I suspect that rather a large number of people of a certain age read him as the functional equivalent of another famed Queens resident: Archie Bunker.