I think it would be easier for Americans to start thinking "Yeah, maybe we could do that too I'm not so sure it would matter either way. Americans don't give a shit about practical data from other countries. Take a look at the topic of universal healthcare. Americans don't care that it works elsewhere. In fact, they feel affronted that anyone even suggest another country may be more progressive or have an idea that we ought to consider.
It's a messed up place in that regard. In many other regards, it's awesome though.