When was America great? You treat your population like they are around for the rich to syphon off money when they are ill. You never had a good social safety net for those who needed it. You have no proper gun control. You have rampant racism that was never properly addressed. You have a democratic system where the minority rules. Here’s news for you America; you never were that great to begin with.
There are no perfect countries, but most of us don’t chant “greatest country in the world”.