Three More Bumper Stickers

On one car I saw these three bumper stickers: "No Fur", "A Hamburger Kills a Beating Heart", and "No, I Don't Have Any Spare-Ribs".

I am not knocking any of these sayings or beliefs. I am just wondering if it would be wrong for me to assume that the person driving this vehicle, who is so concerned with the lives of animals, is as strong and vocal in his views about human life issues?