Nice straw man, complete with Cold War "Left!" framing.
American Progressives and Liberals are only "Left!" of America's increasingly Reactionary Right. Having "access to people in other countries" only reinforces the truth of that. There is no significant "Left" in American politics, just Reactionary Repub billionaires & their base of Teahadists vs the rest of us, more accurately described as shades of moderates.
It's not that Progressives see America as a bad place, but rather as one that can be better for the vast majority of citizens. Contrary to the illusions cast by conservative pundits, it never was overall "better" in the past. At best, it was different, and not a place where we can or should return.
What I think is most interesting is that those on the right today are the ones who consider America a bad place. You so frequently hear how our country is overrun by lazy moochers, illegal immigrants, is becoming communist,etc. It seems quite clear to me that the right strongly dislikes America as it is.