You realize that the tailbone (coccyx) has important functionality in humans and is no longer considered vestigial.
The poor souls that had their tailbone removed thanks to evolutionary theory suffered excruciating pain as a result.
Finally, I just said, "Okay, you win! I give! I admit that your long tailbone is proof that you, personally, evolved from a monkey!"
Even our other evolutionist friends thought that was hilarious.
Shalom!