Here's a wild idea: let's ask the several lesbians in the thread whether they find Brad Pitt attractive.
Because it's not in our nature. Kind of like why you don't like the idea of having sex with Brad Pitt. What is it inside you emotionally that makes you do this? You don't even know.
Anger is in our natures too. So should we condone murder because people want to act on their anger? So sorry, but we all have; envy, greed, lust, sloth, gluttony, pride and anger. We can either act out on them and ruin our lives and the lives of those around us or we can grow up and admit that they aren't qualities that benefit our lives and receive Christ's forgiveness for them. If not, we remain a slave to those things the rest of our lives just to live in everlasting darkness forever. Only a fool would choose the latter.