Earlier quoted context omitted.
See, alt-right is such a subjective term. I've seen people say that wearing a hat with "MAGA" on it is alt-right. I've also seen people say that opinions like "we want an entire race of people locked up and punished" is alt-right as well. While one is definitively magnitudes worse than the other, they're both put under the banner of "alt-right".
MAGA hats boldly proclaim a fascist resurrection myth, though; it's not an inaccurate banner to be put under! I can understand the unhappiness of many folks on the right. It's unpleasant to have one's beliefs placed under scrutiny.
1. Trump supporters are fascist.
2. Fascists should be sabotaged at every turn.
If we link this up with the fact that the majority of white Americans are Trump supporters, it's hard to escape the conclusion that people are basically calling for persecution of white people.