If black cats are bad luck then I'm ready to get all the bad luck in the world! Superstition is really dumb, having access to education used to be a rare commodity once upon a time, which is why people spent most of their time making up stuff that doesn't even make any sense.
If you're still not sure about black cats, why don't you try spending some quality time with one of them, I promise you that you will want to keep it forever after that. All cats are great, hating a certain kind because of the color of its fur is the most ridiculous thing ever.