Note that even running a survey with "negative" question would bias the results in that direction (eg. difference between "how do you rate this?" and "what is bad about this?")
I don't know, is there? I'm fine with a source for either one.
The poster you asked for proof was countering anecdotal claim with their own — why did you not join them in asking for the proof first?
Anyway, this is all rhetorical — as I said, just pointing out that you are not being fair to the poster you replied to, because if you were, you would have asked exactly what you asked here: "is there any source for any of these claims either way?"
America the political entity represented on the world stage by our government, oh yeah people are pissed.
When they call the other person's claim propaganda and are trying to state their own as fact, they should be able to back it up with something.
I'm not going to blindly take something like that as fact, especially considering recent (but also historical) events.
(Might also not be relevant but I will clarify anyway: I am not American)
And yes, both claims are unsupported, I definitely agree.