Is There a Double Standard?

Is there a genuine double standard or not? Or are these two things actually different and deserve to be treated differently? For example, when it comes to many of the double standards between men and women. A man easily gets sexually aroused by female breasts. A woman not the same looking at a guy's chest. So this is not as simple as it seems. It's possible that the right wing deserves more criticism than the left so you can't just assume that they're equal. Maybe they are, but maybe they aren't. That's an empirical qestion. Not something you cand just take a priori as a given.