Entry points to the far right include male-dominated video game culture, the anti-feminist gamergate, troll havens on 4chan and 8chan, and the conspiracism that flourishes on websites like Infowars. Libertarianism is another gateway.

“A lot of these young guys,” Neiwert says, “especially from the software world, who are being sucked into white nationalism, start out being worked up about Ayn Rand in high school.”

Andrew Zhao, 25, a software engineer, says his parents, physicists who emigrated from mainland China, “are Trump fans.” He found out about the Seattle rally from Reddit and Facebook and said, “We need more patriotism. A lot of liberals don’t like America.”

Daniel HoSang says some people of color are drawn to the far right because they “identify with the military, with nationalism, with patriotism, with conservatism.”