As a strong supporter of Bernie Sanders, my first reaction to hearing about the Black Lives Matter protest at Netroots Nation was disappointment. This looks bad, I thought. Bad for Bernie, who is the only presidential candidate with any chance of challenging structural injustice. And bad for Black Lives Matter, who could easily be interpreted as shutting down progressive discussions about immigration and economic inequality to make people focus on their priorities. I’ve had my share of mistakes during protests, as have all the activists I respect most, so I certainly had some sympathy. But I thought their protest was just that: a mistake.