In America, in general, are male offspring still the preference?

In movies and TV shows it still seems as if the desire for male offspring is still the preference, especially for men. (In general, I think the media represents and creates American norms.) I understand the history and purpose of patriarchal lineage, but most of the underlying purposes no longer apply; the age of DNA and the push for equal rights has changed the world.

So, if there is still a preference, why? Like most American norms, is it just tradition and resistance to change? Or is there some sort of valid reason? And by valid I mean something that I will find valid, after all, it is my question.

Also, people from other countries, I’d like to hear your opinion. I only specified America because that’s where I live.