Exactly. She has a website and a voting record that shows vast differences between her and either candidate on issues like women's health, the environment, and immigration, among many others. If you choose to defend your willful ignorance of those differences because some of her current positions conflict with some statement she made a decade ago or some bill her husband signed with her support 20 years ago, so be it. But if Ted Cruz or Donald Trump comes in, shuts down the Clean Power Plan, appoints a Scalia clone to the court and rejects immigration reform in favor of a hardline deportation approach, it is 100% fair to blame those developments on the people who couldn't motivate themselves to vote to prevent them from happening. Maybe you don't mind those things and you're simply voting for Sanders because of his "single issue," as Clinton likes to say. In which case great, no harm done from your perspective. Your decision to stay home is rational. But I do care about those things, which means if they happen I get to blame the people who enabled them through inaction.