I think a lot of people are confusing "proud" with "glad". I'm in the 35-54 range and I don't think there's much to be proud of anymore. And frankly I'm closer to embarrassed than indifferent on the subject given the progress we've lost in the last decade or so. But am I glad to be an American?
Sure, I'm glad I wasn't born in Russia only to be a bullet sponge in an unjustifiable war.
I'm glad I wasn't born in Afghanistan with the Taliban oppression.
I'm glad I wasn't born in Syria during one of the longest and bloodiest conflicts in modern history.
I'm glad I wasn't born to sift through cancerous e-waste or mine diamonds for a warlord in Africa.
I'm glad I wasn't born into North Korea (self explanatory)
So, while I'm glad I wasn't born under worse circumstances, I'm not proud that we're directly and indirectly responsible for many of those circumstances.
But, I also don't think it's an unsolvable problem. We could make America a place to be proud to be from, but that's a very long road from where we are right now and I fear that there's also a lot of potential to get worse if the tinderbox is mishandled.