When one lives in a society where the default “x” (sex, race, religion) is “y”, those that belong to the “y” group may fail to be aware just how stifling, overwhelming, and sometimes threatening their numerical and/or power superiority can be for those not in that group.
It’s human nature that people in the default group will tend to misunderstand what others really are forced to endure, and will exaggerate their own, lesser hardships. But it is important that they (you) at least try to overcome this tendency.
Rather as I, as a straight, white male, should try to understand what women, gays, and non-whites still usually face in our society…BUT I should never presume to fully grasp their situations, especially not by pretending that some slight I have experienced because I’m white, straight, and male (and not poor, I should add) is comparable to what they experience. Because it’s not. (Each of us is a “minority” in *some *respect, so I can empathize with their situation to some degree, but not in the “main” categories like race, sex, and sexual orientation. Oh, and not being disabled.)
Really, it’s only my atheism that marks me as something non-default in our society. (Until I reach an old age, that is. If I do!) It’s the one thing that gives me a less severe taste, quite often but not every day, of what African Americans face pretty much all the time in many places, for example.
Buy you, as a Christian, simply cannot fully grasp what we atheists face in this society. (Though I do appreciate your efforts.) It is in this sense that the complaining-on-a-bloody-pile metaphor makes sense (or whatever it was.)