Can someone explain furry-ism to me?

I just don't understand what could possibly be sexually appealing. Pedophilism makes sense, because although it's a warped sexuality it's focused on human beings. (I'm not a pedo, btw.) But furry-ism goes against nature. We are not genetically programmed to want to fuck animals or people who look like animals--we are programmed to want to fuck human beings.

Someone explain.

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