It’s “human nature” to kill whoever your angry at and rape whoever sexually attracts you. And yet few of us ever behave that way. And it’s not just because of the law. Few of us want to do such cruel things.
You’ll need some really solid evidence to defend you view of “human nature” before you can use it to support or oppose any ideologies.
Some of us are committed to human well-being and not some arbitrary declarations about “human nature.”