No, I tend to be an optimist, and I'm a Republican. I'm also not a hyperactive, ideologically extreme and rebellious teenager (NOT saying you are, just makin' a joke), so I shall not desperately seek negativity in this great trend of elected officials (and ones from my party, at that) doing the right thing.
Yes. America in 2015 absolutely still has its problems and it's going to take a lot more than 2 generations for the shadow of 400 years of severe discrimination to fade away, but there is and will continue to be progress. And as rough as the current economy is, don't forget that 1/3rd of the median US income today buys you a much safer, healthier life than 3X the median income could have in 1915.