Recall that the original meaning of "politics is the mind killer" was not an Eliezer's injunction against mixing politics and rationality, but a warning against unnecessarily using political examples to make a non-political argument:

What on Earth was the point of choosing this as an example? To rouse the political emotions of the readers and distract them from the main question?

Your examples of IQ, MSNBC, IMF and feminism are unnecessarily polarizing if your goal is to discuss confirmation bias.