I think it's highly offensive in *any* advertising to exclusively show the faces/voices of white, upper-middle class people and families. One of the major reasons my partner (we're a two mom adoptive family) and I decided to adopt independently was to bypass giving our business/money to any agency who devalued children of color or 'non-traditional' families for *any* reason.
I've been told I'm only acceptable to parent a special needs child, I've filled out forms where you were able to choose the race of the child you were interested in adopting and had there be no African American choice to choose (mind you there was a "CC/AA" option, as well as most other race combos), and I've submitted info on my partner and I to a leading affiliate of this website for listing as PAPs and been told that our 'lifestyle' precludes us from being presented to birthparents.
Our son's birthmother (who is white -- our child is biracial, birthdad is essentially unknown so we don't know his racial background but he is a person of color) originally matched with three families before finding us -- two of whom had significant reservations about what our son's skin color would be. They wanted a baby, and were 'willing' to adopt a biracial child -- as long as there was a relative guarantee that he'd be light-skinned.
The attitudes of many white PAPs and of adoption officials truly amazes me. I'm no where near as eloquent as LisaCA and Margie, but all forms of institutional racism need to be spoken out against, and loudly.
I'd encourage anyone who feels similarly to open their check book and donate money (or time) to one of the organizations who's mission is to increase the number of adoptive families of color. Also -- something like your agency's advertising (as an example) rubs you the wrong way -- don't be silent. Call them on it. Everytime they hear that something won't be condoned -- they're much more likely to change whatever it is to not lose business. Especially those of you who are white adoptive parents -- use your privilege (since they're advertising to us, ROAR) to create a positive change for *all* involved with adoption.
just my two cents. Sorry this was a bit jumbled -- I get no sleep due to one very cute (though very colicky) one month old. lol