I know. I've seen a lot of abortion bumper stickers, too.
Aborton bumper stickers do bother some. We've had people salute us with their finger because we had a very simple pro-life bumper sticker on our car.
As Carol Everett, former abortion clinic owner (now Christian and pro-life speaker), said, "I hated those little feet pins because they were shining the light of truth on me."
So do some bumper stickers.