Well, I think the idea of "First Men" and "Andal" ethnic groups is absolutely ridiculous in this day and age. At this point, I defy you to find somebody who doesn't have both Andal and First Men ancestors. True, there are a lot of pure First Men beyond the Wall, but within the Seven Kingdoms, the two groups have mixed so much that they might as well be one and the same. You call yourself Andal but the truth is if you trace your ancestry back far enough, you'll find as many First Men as Andals.

But on a more relevant point, is there oppression against what is commonly perceived to be "First Men" (usually Northerners) within the Seven Kingdoms? Absolutely. The further South you go, a lot of "Andals" tend to look down on "First Men", especially in cities like King's Landing, Lannisport and (yes) Oldtown. Dorne seems to be one of the less oppressive Southern states when it comes to First Men but whether this is due to their relative lack of First Men or whether they are that much better at being non-oppressive is debatable. I find it rather shocking that you refer to the First Men as barbaric and then go on to say that there is no oppression against them. Do you not see your own blatant hypocrisy? The Seven Kingdoms have a long way to go when it comes to their treatment of "First Men". To be fair, the treatment of "First Men" is nowhere near as oppressive against those with Rhoynar ancestry.