Globalism doesn't really encourage redundant regions – it encourages all production of a certain type of good to be done in a single region and then traded with other regions for maximum efficiency.
For example, globalization is why Toyota manufactures cars and car parts in 18 countries, rather than just in Japan. Under localism, Toyota would only manufacture in Japan.
Definitely not. It is because of tax incentives under protectionist policies. A perfect free-market globalized world would actually see cars being manufactured in just one place for maximal efficiency.
Resources are finite no matter how much capitalism pretends otherwise.