That depends on the definition of the word "blame" that you're using. If it's a moral castigation? No, of course not; they are being ground down by the shitty circumstances that entrap most of us and of course it's hard to hold as a moral failing the maximization of what little they have (and while it is a lot to people below them, yeah, it's little in the grand scheme of things).

But if it is an identification of a problem? I think it is fair. The amount of misery that NIMBYs can spread through forced inaction significantly outweighs the amount received in the case of action, I think.