Because America really, really sucks and we’ve never done anything positive for the world? Uh, NOT! A fine example to watch is Dinesh D’Souza’s “America”. Nicely done IMHO. Of course there are many more out there.
P.S. Attention delicate snowflakes. Kiss the ground every morning that you weren’t born in some 3rd world hell hole.
And then stop screwing things up so your grandchildren will be.