I first started noticing ironies in "liberal" thought back in my school days. One moment was an argument over evolution vs. creationism. The next came a discussion of endangered species. And as far as I could tell, the ones who had been dismissive of creation and insisting that evolution and "survival of the fittest" was irrefutable scientific fact -- were then calling for the halt of any progress because of some snail that wasn't fit enough to survive.
In other words: those insisting upon evolution as the Truth were then turning around to outlaw it.
Today's irony: Today is apparently the 50th Anniversary of The Pill. Happy Mother's Day!!