Being a progressive is kind of like being a nerd in high school -- your identity is built around being a powerless outcast, and thus gaining power or popularity feels like a betrayal. Believing in an inherently unfair system is great if it motivates you to help make it more fair, but every so often, it just means we have a ready-made excuse for when we fail to achieve that goal.
If Trump's party holds onto one or both houses of Congress on Tuesday, it will be due to a whole bunch of narrow races going their way. If so, there will be many articles on left-wing blogs about how voter suppression won the GOP the election because of new voter ID laws and registration purges turning away thousands of votes. This will completely ignore the fact that 70-plus percent of us who weren't suppressed just chose to stay home, and the fact that a strong enough turnout would have crushed those suppression efforts like a horse stepping on a single human testicle.
We'll talk about gerrymandering, corporate campaign donations, the undemocratic Senate in which a vote in Wyoming carries as much power as 80 votes in California. Never mind bitter political battles that have been won by "victims" over the decades, who each faced unfair/rigged systems and (censored) won anyway. We can't acknowledge that we can in fact overcome the unfairness if we push hard enough, because that means if we fail to do it, that it's our fault. And nothing can ever be our fault, because victim-blaming is wrong and also we're always the victims.