Where my dad came from (Scary Gary) you voted Republican because up until about the 1960s, they were the party that cared about immigrants and wanted them to succeed. So, when he moved to a similarly Republican state in the 80s, he remained a Republican. The Republican is not a werewolf boogeyman around here. I made the mistake once of saying that I was a "closet Republican" on HN and I got downvoted so fast that I lost all self-confidence for about a year.
I went to a student Democrats meeting on my local campus. Now I know college political groups are a unique demographic and I get why these people (these people, yikes) feel this way, and those that I talked to were completely rational; like I could be and was one of them.
But when we were asked at the beginning of the meeting why people were Democrats, the very first person responded that they were a Democrat because they were not a racist.
The tactlessness, the arrogance, the naivety, and immaturity were so concentrated in a single sentence that I wish I could have left. But I stayed and learned even if that tribalism is toxic and wins no friends nor understanding nor ultimately progress.