I can't find a "WIC doesn't cover birth control article" but I can't one that says it does. I can also find the FAQ from PP that says they'll give you free birth control but if you're in a red state, they won't exist.
Not only is there work in this area, it's a not a leap at all. A minor application of critical thinking and logic makes cause and effect pretty simple. This has always been about forcing personal feelings onto others. We make a giant show of being anti-choice and then talk down to the poor and point out the issues in poverty stricken areas to make ourselves feel better, ignoring the clear evidence that this is a self fulfilling issue.
This was fun but I'm going to go back to getting the hell out of here, literally. I have packing to do.