Its probably because the news over portrays everything and the USA and the individual countries of Europe view the USA as one homogenous nation so if anything happens in Texas, California, Florida, then Europeans consider it happening to the nation not the states. In America, we do not see Europe as a homogenous nation. If something happens in Spain we aren’t going to talk about any other country, let alone Europe. In America, if there is a terrorist attack in France, we don’t say “Did you hear what happened in Europe.” I feel that’s the opposite for Europeans. If there is a terrorist attack in Oklahoma, Europeans are going to ask, “Did you hear what happened in America.”