Honestly, I didn't get it at first - I thought it was some kind of matrix reference about the red and blue pill (in hindsight, not even for a particular reason)

Honestly, I didn't get it at first - I thought it was some kind of matrix reference about the red and blue pill (in hindsight, not even for a particular reason), not about democrats and republicans... Even though I'm not american I feel stupid not having thought of that first.