Historically if you study the economy of Rome, there were no restrictions on imports. The Romans were remarkably tolerant on how anyone including foreigners could spend or invest their capital. Obviously there will always be political obstacles to unfettered capitalism in modern times. The opponents rally under banners such as “enviormentalism”, “social justice and redistribution” as well as not so subtle hostility and jealousy of the talented, successful risk takers. (”you didn’t make that” “You exploited people and the environment to selfishly get rich” etc etc). Yet much of the worlds problems is that the post colonial newly independent countries in the mid 20th century, ( with the exception perhaps of Singapore and Hong Kong) chose the socialistic approaches of their former masters that appealed to newly enfranchised elites trying to consolidate power. Economies stagnated, regressed, never developed and the political and social consequences have been disastrous. Very difficult to defend capitalism. Four of the last six Presidential elections demonstrate just how hard it is and the consequences of failing to do so.
Do you consider yourself a citizen of the World?
Do you think generating revenue via income taxes is preferable to import tariffs and duties?
Every nation of the world is looking to gain advantage, and those who do not protect themselves will be destitute.