My suspicion about love being fake in the USA comes from using the internet and observing how love, the word, is used continually in a Political situation. I think Americans have begun to use love and hate as concepts to either validate ot disqualify political ideas. In that case, if you can piss someone off and make them hate, then you are politically more powerful. To me this is childish and indicative of how dumb American politics are.
Everyone does it. Obama can stand up and project love onto an audience and they vote for him. Christians can run their mouths at you and piss you off, then say you hate and feel politically validated. I think the USA needs to grow up.
And somehow you are above this? It sounds like you are trying to manipulate in the same fashion by insisting that Americans are childish. It sounds a bit hateful.