Is this discussion still going on? My final say in this is:
The Twins are 2 "slightly" dumb alien robot kids.
There are dumb kids in all races, white, black, asian... you name the race and they're there, and whats worse, theres more of them every day that goes by.
If you doubt me, tune on a channel like MTV (I don't know what the M stands for since music is the least they have in their schedulle). It's all about being "cool", looking badass, talking street lingo, pimpin' rides and all sorts of stuff that have most kids turning into dumb kids.
Ask them anything basic like who was the first man to step foot on the moon, or who was the first president of the USA, or who was Rosa Parks.
Most of them will seem to be an impression of the Twins.
But ask them how many rooms 50'Cent crib has or who is Paris Hilton's current boyfriend and they'll be on top of it.
So if you're looking for any group that should be offended by the portraial of Skids and Mudflap, then that's dumb kids. Fortunately, a) they're too dumb to notice, and b)these are dumb alien robot kids were talking about, so the point is moot.
Besides, they had a sticker saying "Decepticons, suck my popsicle", how can any one be mad at that?
Chill people, it's just a movie.