I mean, I know you live in a very red area. But other than being heavily outnumbered, is there another reason Biden voters might feel that way? Would they really fear being fired or targeted at their home or workplace?...such that they would feel uncomfortable answering a poll?
I live in red-leaning purple area, and I feel this...and especially so in my national company, where an executive was comfortable enough yesterday to spout a Dem political view as if it were a fact, and no one felt they could contradict him. Biden supporters always feel more free to speak up in my experience.
Maybe the redneck Riviera is more heavily red, but I doubt Biden supporters actually fear getting fired or accused of things as heinous as racism. They probably just don't want to debate.