Well of course Americans call un-cute penises weird looking. It's because people usually only show and draw them as cut so that becomes the norm. Let's say you lived your whole life only seeing orange cats. Orange cats were shown in all the media and even were crudely drawn everywhere. You'll come to accept orange cats as the norm because you never knew anything else. Then one day you come across a gray cat. You think it looks weird because your brain has been conditioned to think orange cats are natural. This may cause you to give the gray cat a try or reject it even though the gray cat might be just as good as the orange cat or even better. However you reject it because it looks weird. However, you might own an orange cat yourself. You've had this cat all your life. Now there is another cat. You might reject it solely because you think your orange cat is better than this new and different gray cat. Of course you'd prefer your orange cat because its yours and all you'll ever have. This could be caused by jealousy because someone with a gray cat can get an orange cat whenever while someone with and orange cat can never have a true gray cat again, sure they can dye its fur but it'll never be truly gray.
Also, circumcision in the USA became popular during a time of purity. People got their sons circumcised to prevent them from masturbating because it caused pain if they tried to touch it afterwards (the way they remove the foreskin is horrific and torturous). They also tried to stop their daughters as well by applying stuff to their clit that would burn them if they masturbated. Over the years it just became the norm and people didn't think about it that much and just got it done. Lately though, less and less boys are getting cut so in a few generations, circumcised will be the "weird" one in the USA.
Polls are not good indicators. There is the sample size, the population asked, which sexes were asked, honesty of answerers, the way the question was asked, the options provided for answers, timing of the question, if guys were cut/un-cut, if gals had experience with one or the other or both, ect. Polling is in no way accurate unless everybody was polled. Even then, you'll have people that lie and those without experience to muddle up your answers.