http://freethoughtblogs.com/crommunist/2012/01/16/shuffling-feet-a-black-mans-view-on-schroedingers-rapist/

This morning I made a reference to the fact that men are often assumed to be potential rapists as an example of how sexism negatively affects men as well as women. The argument, commonly referred to as “Schroedinger’s Rapist”, goes something like this: because you can’t know for sure if the stranger approaching you in a dark alley or other unsafe place is a rapist or not, it is generally a good idea to be on your guard. Men can enhance their interactions with women by being aware of this mindset, and adjusting their own behaviour accordingly.

I have often heard from people making an anti-feminist argument that Schroedinger’s Rapist is profoundly sexist and unfair. After all, most men do not rape – why should every man be treated like a rapist? Isn’t that discrimination? How can you claim to be opposed to sexism, yet promote a fundamentally sexually prejudicial idea? The next step is often to draw parallels to racism – is it fair to treat all black people as potential criminals simply because, statistically speaking, there are more black criminals than white ones? Isn’t that racist?

As much as I hate it when white people use anti-black racism as a cudgel with which to beat other people, I can understand the conundrum as it is expressed. The problem with it (and the reason why it’s so bothersome to hear white people talk about anti-black racism) is that it fails to address the question in a meaningful way. To demonstrate what I mean, I’d like to share a couple of personal anecdotes from my own life. I’ve never shared these stories with anyone before, and I’m not sure why because there’s nothing particularly embarrassing about them, and they’re extremely useful in this context.

(snip)

TL/DR: I’ve frequently heard people object to the Schroedinger’s Rapist argument as sexist, with anti-black racism used as a counter-example. I reject this comparison because it neglects two important factors: 1) that the issue under discussion is about whether or not we want women to feel more comfortable; and 2) that black people often make similar behavioural adjustments to accommodate the racism of their white friends. I share some personal stories to illustrate this.