I try to address some of the points and refutations. TL; DR; alert
First and foremost. I agree with everybody that it is way too early to start patting our respective backs. Here in Finland (close enough, Carl-E!) there is probably less variation within the mainstream media than what is seen in the U.S. Mostly due to size. A population of 5 million cannot support too many TV channels for example. And the mainstream media happens to be firmly in the progressive hands (or under parliamentary control). I did forget that in a bigger country a percentage wise small group is still big enough to, say, run a TV station. So my media exposure may, indeed, be very different from yours. I should've thought about this a bit more in advance. My bad.
My U.S.A. experience is from 20+ years ago and consists of 4 years at Notre Dame, Indiana followed by a semester at Berkeley, California. Those two might represent the opposite ends of the spectrum in some sense. But even at the presumably ultra-conservative N.D. the student body had a largish enlightened faction giving support to the Gay/Lesbian student group seeking recognition. I don't know what the current status is there now. The shadow of the Vatican is long and dark. Anyway, I have been under the impression that CollegeTown, U.S.A. is a very politically correct place? Save the likes of Notre Dame and Brigham Young, where political correctness is limited to gender and race, or some really wacko smaller colleges (Is Oral Roberts still in operation?). But again. The filter formed by geographic distance means that to me U.S. mainstream media is from D.C., New York City or LA, but to LJA and you all it may mean something else. Yes, I am aware that I do not have a complete picture, but my understanding is that she was talking about stereotypes in media like nationwide TV networks, NYT and such. Not some televangelist's private channel.
I don't know if Northern Europe is more PC than the U.S.? May be we are? At least when it comes to gender equality. When dealing with racial diversity the melting pots of the world are ahead of us. Immigration to Finland is such a small phenomenon that the presumed political correctness has not been tested. A large number of people outside major towns have never met a person of a different ethnicity, so the dealings could be clumsy, even if the intentions were the best. Also a large fraction of the immigrants are refugees, and they are easy prey for some given that it takes a lot of time for them to start contributing to the economy.
I am unable to tell whether we are ahead or behind U.S. in gay rights. Here the homosexual couples were given the right to get a "registered relationship" giving them most of the same legal rights and obligations that married couples have e.g. in case of a death or a divorce and for the purposes of taxation. The currently debated questions are whether homosexual couples should have the right to adopt children, and whether the "registered relationship" should be called a marriage, and brought under the same law with heterosexual marriage. We are a little bit behind the other Nordic countries like Sweden that aspires to be the politically correct utopia.
All this is relative recent (mostly 21st century). In terms of legislation we are now at a relatively good point. The battle in the minds and hearts of people is, unfortunately, still ongoing. Gay/lesbian activities as well as the immigrants occasionally attract violent acts. Gays are excused of military service (general conscription for men, voluntary military service for women). I don't know, whether homosexuals are prohibited from service or not? So can't claim us to be more progressive than the U.S. armed forces. Our incumbent president was a gay/lesbian activist in her youth. I don't know, whether she did that to show off how progressive she is, or whether she had a personal take on the matter. We are unlikely to elect a non-caucasian president in the foreseeable future, though.
Where do I stand in all this? My choice of phrase ("media darlings", "walking on eggshells our toes") was meant to convey that I don't consider myself to be fully PC. Not all of it is second nature to me, and I occasionally need to operate on something like Momo's database of protocols. For example, I will laugh at some markedly politically incorrect jokes. While that is perhaps the most harmless form of homophobia/racism/sexism, it is also something relatively deep inside my core.
We are definitely not there, yet.