I remember when I first encountered the term “red pill” on some Reddit post and I was at first confused. I couldn’t help but assume it was some reference to the matrix. Over time I noticed it was used as a badge of pride when someone was rejecting conventional leftist politics. People who do so are referred to as “redpilling”. I came across this article and it made everything clear to me.
For those of us who are liberals, just know that it’s a sign of an alt-rightist or, at the very least, a conservative.