What you list were solved by two things: the US providing the EU a military during the cold war and the fact that most of Europe was centered around dense citie

What you list were solved by two things: the US providing the EU a military during the cold war and the fact that most of Europe was centered around dense cities since the Middle Ages. You can't make high speed rail with stops in the US because our cities are spaced just far enough with low enough density to make the start stop process worthless. Walking cities are only possible if we force people into dense cities. As a country that does like freedom, you're going to start a civil war trying to relocate people through emanate domain into small apartments. We need to learn what works for us. We have a different land useage pattern than Europe. We have a different approach the neighbors than The EU. Learn from them, but don't mindlessly copy.