by snowflake, do you mean a journalist who asked a question about what a congressman's position is on healthcare? I would think it was pertinent to a voter's decision - whether Republican or Democrat - if the candidate wants to remove healthcare from 23m people, and in particular the sort of people who are sick, in favour of a tax cut. That was the question.
Does providing healthcare to people with pre-existing conditions qualify as a snowflake agenda? Have you tried telling that to a cancer patient? Or the parents of a child with juvenile diabetes or cerebral palsy?
On assaulting those whose opinions you disagree with...
In England, the deputy PM famously slugged a voter who egged him. He was a left winger. https://www.youtube.com/watch?v=NBqfuUiBpXs